diff --git a/INSTALL.rst b/INSTALL.rst
index 1796a332..34fbec57 100644
--- a/INSTALL.rst
+++ b/INSTALL.rst
@@ -8,7 +8,7 @@ repository <https://github.com/LCPQ/quantum_package>`_.
 
 .. code:: bash
 
-  git clone https://github.com/LCPQ/quantum_package
+  git clone https://github.com/QuantumPackage/qp2
 
 
 Before anything, go into your :file:`quantum_package` directory and run
diff --git a/docs/ref b/docs/ref
index 065b2cde..58cc4721 100644
--- a/docs/ref
+++ b/docs/ref
@@ -4,7 +4,7 @@
 * option provider :option:`name_of_module provider`
 * subroutine      :c:func:`my_subroutine` 
 * module          :ref:`module`
-* provider        :c:data:`my_subroutine` 
+* provider        :c:data:`my_provider` 
 * qp_command      :ref:`qp_command`
 * linux command   :command:`qp_command`
 * linux command with option :command:`qp_command -o`
diff --git a/docs/source/programmers_guide/index_providers.rst b/docs/source/programmers_guide/index_providers.rst
index c9d65302..ae661a45 100644
--- a/docs/source/programmers_guide/index_providers.rst
+++ b/docs/source/programmers_guide/index_providers.rst
@@ -207,6 +207,7 @@ Index of Providers
 * :c:data:`element_name` 
 * :c:data:`energy_c` 
 * :c:data:`energy_c_lda` 
+* :c:data:`energy_c_new_functional` 
 * :c:data:`energy_c_pbe` 
 * :c:data:`energy_iterations` 
 * :c:data:`energy_sr_c_lda` 
@@ -215,6 +216,7 @@ Index of Providers
 * :c:data:`energy_sr_x_pbe` 
 * :c:data:`energy_x` 
 * :c:data:`energy_x_lda` 
+* :c:data:`energy_x_new_functional` 
 * :c:data:`energy_x_pbe` 
 * :c:data:`exc_degree_per_selectors` 
 * :c:data:`exchange_functional` 
@@ -445,6 +447,9 @@ Index of Providers
 * :c:data:`n_states_diag` 
 * :c:data:`n_virt_orb` 
 * :c:data:`n_virt_orb_allocate` 
+* :c:data:`new_correlation_functional` 
+* :c:data:`new_exchange_functional` 
+* :c:data:`new_hf_exchange` 
 * :c:data:`no_ivvv_integrals` 
 * :c:data:`no_vvv_integrals` 
 * :c:data:`no_vvvv_integrals` 
@@ -511,6 +516,10 @@ Index of Providers
 * :c:data:`potential_c_beta_ao_lda` 
 * :c:data:`potential_c_beta_ao_pbe` 
 * :c:data:`potential_c_beta_mo` 
+* :c:data:`potential_new_functional_c_alpha_ao` 
+* :c:data:`potential_new_functional_c_beta_ao` 
+* :c:data:`potential_new_functional_x_alpha_ao` 
+* :c:data:`potential_new_functional_x_beta_ao` 
 * :c:data:`potential_sr_c_alpha_ao_lda` 
 * :c:data:`potential_sr_c_alpha_ao_pbe` 
 * :c:data:`potential_sr_c_beta_ao_lda` 
@@ -831,6 +840,8 @@ Index of Subroutines/Functions
 * :c:func:`davidson_diag_hs2` 
 * :c:func:`davidson_pull_results` 
 * :c:func:`davidson_push_results` 
+* :c:func:`davidson_push_results_async_recv` 
+* :c:func:`davidson_push_results_async_send` 
 * :c:func:`davidson_run_slave` 
 * :c:func:`davidson_slave_inproc` 
 * :c:func:`davidson_slave_tcp` 
@@ -1213,6 +1224,8 @@ Index of Subroutines/Functions
 * :c:func:`push_integrals` 
 * :c:func:`push_pt2` 
 * :c:func:`push_pt2_results` 
+* :c:func:`push_pt2_results_async_recv` 
+* :c:func:`push_pt2_results_async_send` 
 * :c:func:`push_selection_results` 
 * :c:func:`qp_stop` 
 * :c:func:`qrpa` 
@@ -1341,6 +1354,8 @@ Index of Subroutines/Functions
 * :c:func:`write_time` 
 * :c:func:`zmq_abort` 
 * :c:func:`zmq_delete_task` 
+* :c:func:`zmq_delete_task_async_recv` 
+* :c:func:`zmq_delete_task_async_send` 
 * :c:func:`zmq_delete_tasks` 
 * :c:func:`zmq_delete_tasks_async_recv` 
 * :c:func:`zmq_delete_tasks_async_send` 
diff --git a/docs/source/programmers_guide/new_ks.rst b/docs/source/programmers_guide/new_ks.rst
index a505f0c2..58e87c2a 100644
--- a/docs/source/programmers_guide/new_ks.rst
+++ b/docs/source/programmers_guide/new_ks.rst
@@ -1,5 +1,7 @@
-==================================
-Developping new functionals for KS
-==================================
+============================================
+Developping new functionals for KS or RS-DFT
+============================================
 
+The |QP| contains all the basic quantities to run |DFT| or |RS-DFT| calculations: 
 
+* Handling 
diff --git a/docs/source/users_guide/quickstart.rst b/docs/source/users_guide/quickstart.rst
index d2de32c9..20e56c75 100644
--- a/docs/source/users_guide/quickstart.rst
+++ b/docs/source/users_guide/quickstart.rst
@@ -18,9 +18,10 @@ Hands on
 
 .. important::
 
-   Before using the |qp|, it is required to source the file
-   :file:`quantum_package.rc` if it has not been done already in the
-   current shell.
+   Before using the |qp|, it is required to load the environment variables 
+   relatives to the |QP| or to be in the |qpsh| mode. 
+   Here we'll do it within the |qpsh| shell: please run ${QP_ROOT}/bin/qpsh 
+   in the current shell.
 
 Create the EZFIO database
 -------------------------
diff --git a/man/cis.1 b/man/cis.1
index 7ecc6ace..62ce6a66 100644
--- a/man/cis.1
+++ b/man/cis.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "CIS" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "CIS" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 cis \-  | Quantum Package >
 .
diff --git a/man/cisd.1 b/man/cisd.1
index 20954d68..3daf00f2 100644
--- a/man/cisd.1
+++ b/man/cisd.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "CISD" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "CISD" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 cisd \-  | Quantum Package >
 .
diff --git a/man/configure.1 b/man/configure.1
index 2bd704ed..806c7515 100644
--- a/man/configure.1
+++ b/man/configure.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "CONFIGURE" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "CONFIGURE" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 configure \-  | Quantum Package >
 .
diff --git a/man/diagonalize_h.1 b/man/diagonalize_h.1
index ed8931ba..0360ca4a 100644
--- a/man/diagonalize_h.1
+++ b/man/diagonalize_h.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "DIAGONALIZE_H" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "DIAGONALIZE_H" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 diagonalize_h \-  | Quantum Package >
 .
diff --git a/man/excited_states.1 b/man/excited_states.1
index f96ab6f2..d28ae86b 100644
--- a/man/excited_states.1
+++ b/man/excited_states.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "EXCITED_STATES" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "EXCITED_STATES" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 excited_states \-  | Quantum Package >
 .
diff --git a/man/fci.1 b/man/fci.1
index 97975d6a..082634e3 100644
--- a/man/fci.1
+++ b/man/fci.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "FCI" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "FCI" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 fci \-  | Quantum Package >
 .
diff --git a/man/fcidump.1 b/man/fcidump.1
index c8791248..17f0917b 100644
--- a/man/fcidump.1
+++ b/man/fcidump.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "FCIDUMP" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "FCIDUMP" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 fcidump \-  | Quantum Package >
 .
diff --git a/man/four_idx_transform.1 b/man/four_idx_transform.1
index 41f89b92..31fc27a0 100644
--- a/man/four_idx_transform.1
+++ b/man/four_idx_transform.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "FOUR_IDX_TRANSFORM" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "FOUR_IDX_TRANSFORM" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 four_idx_transform \-  | Quantum Package >
 .
diff --git a/man/interfaces.1 b/man/interfaces.1
index f9cadd99..6642e43e 100644
--- a/man/interfaces.1
+++ b/man/interfaces.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "INTERFACES" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "INTERFACES" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 interfaces \-  | Quantum Package >
 .
diff --git a/man/ks_scf.1 b/man/ks_scf.1
index 00b42a45..eb0b726c 100644
--- a/man/ks_scf.1
+++ b/man/ks_scf.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "KS_SCF" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "KS_SCF" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 ks_scf \-  | Quantum Package >
 .
diff --git a/man/molden.1 b/man/molden.1
index 1ceae1ab..3cc26592 100644
--- a/man/molden.1
+++ b/man/molden.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "MOLDEN" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "MOLDEN" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 molden \-  | Quantum Package >
 .
diff --git a/man/natural_orbitals.1 b/man/natural_orbitals.1
index 35b0980c..30695eef 100644
--- a/man/natural_orbitals.1
+++ b/man/natural_orbitals.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "NATURAL_ORBITALS" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "NATURAL_ORBITALS" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 natural_orbitals \-  | Quantum Package >
 .
diff --git a/man/plugins.1 b/man/plugins.1
index 018cf648..dfddc020 100644
--- a/man/plugins.1
+++ b/man/plugins.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "PLUGINS" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "PLUGINS" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 plugins \-  | Quantum Package >
 .
diff --git a/man/print_e_conv.1 b/man/print_e_conv.1
index 21a083f1..1805fea2 100644
--- a/man/print_e_conv.1
+++ b/man/print_e_conv.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "PRINT_E_CONV" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "PRINT_E_CONV" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 print_e_conv \-  | Quantum Package >
 .
diff --git a/man/print_wf.1 b/man/print_wf.1
index 515b8a91..545c746c 100644
--- a/man/print_wf.1
+++ b/man/print_wf.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "PRINT_WF" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "PRINT_WF" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 print_wf \-  | Quantum Package >
 .
diff --git a/man/printing.1 b/man/printing.1
index 0ba10e53..16ba6c07 100644
--- a/man/printing.1
+++ b/man/printing.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "PRINTING" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "PRINTING" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 printing \-  | Quantum Package >
 .
diff --git a/man/pt2.1 b/man/pt2.1
index 91ac2941..5c78a1f1 100644
--- a/man/pt2.1
+++ b/man/pt2.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "PT2" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "PT2" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 pt2 \-  | Quantum Package >
 .
diff --git a/man/qp_convert_output_to_ezfio.1 b/man/qp_convert_output_to_ezfio.1
index 43c10485..6a0453ce 100644
--- a/man/qp_convert_output_to_ezfio.1
+++ b/man/qp_convert_output_to_ezfio.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "QP_CONVERT_OUTPUT_TO_EZFIO" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "QP_CONVERT_OUTPUT_TO_EZFIO" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 qp_convert_output_to_ezfio \-  | Quantum Package >
 .
diff --git a/man/qp_create_ezfio_from_xyz.1 b/man/qp_create_ezfio_from_xyz.1
index de6a6da8..7e9e6f19 100644
--- a/man/qp_create_ezfio_from_xyz.1
+++ b/man/qp_create_ezfio_from_xyz.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "QP_CREATE_EZFIO_FROM_XYZ" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "QP_CREATE_EZFIO_FROM_XYZ" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 qp_create_ezfio_from_xyz \-  | Quantum Package >
 .
diff --git a/man/qp_edit.1 b/man/qp_edit.1
index 3e222910..d5407ee9 100644
--- a/man/qp_edit.1
+++ b/man/qp_edit.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "QP_EDIT" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "QP_EDIT" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 qp_edit \-  | Quantum Package >
 .
diff --git a/man/qp_export_as_tgz.1 b/man/qp_export_as_tgz.1
index 0950a030..9f83c3fb 100644
--- a/man/qp_export_as_tgz.1
+++ b/man/qp_export_as_tgz.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "QP_EXPORT_AS_TGZ" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "QP_EXPORT_AS_TGZ" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 qp_export_as_tgz \-  | Quantum Package >
 .
diff --git a/man/qp_plugins.1 b/man/qp_plugins.1
index 7e5db588..754de3f3 100644
--- a/man/qp_plugins.1
+++ b/man/qp_plugins.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "QP_PLUGINS" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "QP_PLUGINS" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 qp_plugins \-  | Quantum Package >
 .
diff --git a/man/qp_reset.1 b/man/qp_reset.1
index 2b62d8ed..96f39ffd 100644
--- a/man/qp_reset.1
+++ b/man/qp_reset.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "QP_RESET" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "QP_RESET" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 qp_reset \-  | Quantum Package >
 .
diff --git a/man/qp_run.1 b/man/qp_run.1
index 7ec33303..0e706fe0 100644
--- a/man/qp_run.1
+++ b/man/qp_run.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "QP_RUN" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "QP_RUN" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 qp_run \-  | Quantum Package >
 .
diff --git a/man/qp_set_frozen_core.1 b/man/qp_set_frozen_core.1
index 7077976e..241086fd 100644
--- a/man/qp_set_frozen_core.1
+++ b/man/qp_set_frozen_core.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "QP_SET_FROZEN_CORE" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "QP_SET_FROZEN_CORE" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 qp_set_frozen_core \-  | Quantum Package >
 .
diff --git a/man/qp_set_mo_class.1 b/man/qp_set_mo_class.1
index 01c71fe6..ce3ce0e5 100644
--- a/man/qp_set_mo_class.1
+++ b/man/qp_set_mo_class.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "QP_SET_MO_CLASS" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "QP_SET_MO_CLASS" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 qp_set_mo_class \-  | Quantum Package >
 .
diff --git a/man/qp_stop.1 b/man/qp_stop.1
index 47cc7559..3e9f42d4 100644
--- a/man/qp_stop.1
+++ b/man/qp_stop.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "QP_STOP" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "QP_STOP" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 qp_stop \-  | Quantum Package >
 .
diff --git a/man/qp_update.1 b/man/qp_update.1
index 5acad761..319e3ecb 100644
--- a/man/qp_update.1
+++ b/man/qp_update.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "QP_UPDATE" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "QP_UPDATE" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 qp_update \-  | Quantum Package >
 .
diff --git a/man/qpsh.1 b/man/qpsh.1
index e7f22a8c..fb05f1d8 100644
--- a/man/qpsh.1
+++ b/man/qpsh.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "QPSH" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "QPSH" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 qpsh \-  | Quantum Package >
 .
diff --git a/man/rs_ks_scf.1 b/man/rs_ks_scf.1
index 1fc27949..e08761b7 100644
--- a/man/rs_ks_scf.1
+++ b/man/rs_ks_scf.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "RS_KS_SCF" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "RS_KS_SCF" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 rs_ks_scf \-  | Quantum Package >
 .
diff --git a/man/save_natorb.1 b/man/save_natorb.1
index 1b06061d..4a6b50d4 100644
--- a/man/save_natorb.1
+++ b/man/save_natorb.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "SAVE_NATORB" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "SAVE_NATORB" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 save_natorb \-  | Quantum Package >
 .
diff --git a/man/save_one_e_dm.1 b/man/save_one_e_dm.1
index 5899cdfb..d41ad7b3 100644
--- a/man/save_one_e_dm.1
+++ b/man/save_one_e_dm.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "SAVE_ONE_E_DM" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "SAVE_ONE_E_DM" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 save_one_e_dm \-  | Quantum Package >
 .
diff --git a/man/save_ortho_mos.1 b/man/save_ortho_mos.1
index a3183723..aaee4f8c 100644
--- a/man/save_ortho_mos.1
+++ b/man/save_ortho_mos.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "SAVE_ORTHO_MOS" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "SAVE_ORTHO_MOS" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 save_ortho_mos \-  | Quantum Package >
 .
diff --git a/man/scf.1 b/man/scf.1
index 9ff63737..ec9803d4 100644
--- a/man/scf.1
+++ b/man/scf.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "SCF" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "SCF" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 scf \-  | Quantum Package >
 .
diff --git a/man/write_integrals_erf.1 b/man/write_integrals_erf.1
index 71b989c6..6180b2d3 100644
--- a/man/write_integrals_erf.1
+++ b/man/write_integrals_erf.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "WRITE_INTEGRALS_ERF" "1" "Jan 29, 2019" "2.0" "Quantum Package"
+.TH "WRITE_INTEGRALS_ERF" "1" "Feb 04, 2019" "2.0" "Quantum Package"
 .SH NAME
 write_integrals_erf \-  | Quantum Package >
 .
diff --git a/src/dft_one_e/README.rst b/src/dft_one_e/README.rst
new file mode 100644
index 00000000..4ffe01bf
--- /dev/null
+++ b/src/dft_one_e/README.rst
@@ -0,0 +1,31 @@
+dft_one_e
+=========
+
+This module defines the most important providers needed for the |DFT| and |RSDFT| calculations: 
+
+* :c:data:`energy_x` and :c:data:`energy_c` : the *exchange* and *correlation* energy functionals (see :file:`e_xc_general.irp.f`)
+
+* :c:data:`potential_x_alpha_ao` and :c:data:`potential_x_beta_ao` : the exchange potential for alpha/beta electrons  (see :file:`pot_general.irp.f`)
+
+* :c:data:`potential_c_alpha_ao` and :c:data:`potential_c_beta_ao` : the correlation potential for alpha/beta electrons (see :file:`pot_general.irp.f`)  
+
+
+These providers are then used in the :ref:`ks_scf` and :ref:`rs_ks_scf` programs, together within some |RSDFT| external 
+plugins (see `<https://gitlab.com/eginer/qp_plugins_eginer>`_). 
+
+The flexibility of the functionals is handle by the two following keywords (see :ref:`module_dft_keywords`): 
+
+* :option:`dft_keywords exchange_functional` : defines which *exchange* functionals will be set 
+
+* :option:`dft_keywords correlation_functional` : defines which *correlation* functionals will be set 
+
+
+In the core modules of the |QP|, two functionals are implemented: 
+
+ * "LDA" or "short_range_LDA" for, respectively the |LDA| and its short-range version
+
+ * "PBE" or "short_range_PBE" for, respectively the |PBE| and its short-range version
+
+
+If you have designed your own exchange/correlation functionals (see the documentation of the :ref:`module_new_functionals`), 
+you can use them in all |DFT|-based programs by  setting the :option:`dft_keywords exchange_functional` and :option:`dft_keywords correlation_functional` keywords to "my_functional".