diff --git a/configure b/configure
index 2599fbbc..23f4aa02 100755
--- a/configure
+++ b/configure
@@ -292,6 +292,9 @@ EOF
                 # Special commands for Travis CI
                 chmod +x "${QP_ROOT}"/external/opam_installer.sh
                 rm --force ${QP_ROOT}/bin/opam
+                if [[ -n ${NO_CACHE} ]] ; then
+                        rm -rf ${HOME}/.opam
+                fi
                 export OPAMROOT=${HOME}/.opam
                 cat << EOF | bash ${QP_ROOT}/external/opam_installer.sh --no-backup 
 ${QP_ROOT}/bin
@@ -301,9 +304,9 @@ ${QP_ROOT}/bin
 EOF
 
                 rm ${QP_ROOT}/external/opam_installer.sh
-                source ${OPAMROOT}/opam-init/init.sh > /dev/null 2> /dev/null || true
-
-                opam switch create ocaml-base-compiler.4.07.1
+#                source ${OPAMROOT}/opam-init/init.sh > /dev/null 2> /dev/null || true
+#
+#                opam switch create ocaml-base-compiler.4.07.1
                 opam init --verbose --yes --compiler=4.07.1 --disable-sandboxing
 
                 eval $(opam env)
@@ -312,18 +315,19 @@ EOF
             else
                 # Conventional commands
                 execute << EOF
-                  chmod +x "\${QP_ROOT}"/external/opam_installer.sh
-                  "\${QP_ROOT}"/external/opam_installer.sh --no-backup 
+                  chmod +x "${QP_ROOT}"/external/opam_installer.sh
+                  "${QP_ROOT}"/external/opam_installer.sh --no-backup 
 EOF
                 execute << EOF
-                  rm --force \${QP_ROOT}/bin/opam
-                  export OPAMROOT=\${OPAMROOT:-\${QP_ROOT}/external/opam}
-                  echo \${QP_ROOT}/bin \
-                  | sh \${QP_ROOT}/external/opam_installer.sh 
+                  rm --force ${QP_ROOT}/bin/opam
+                  export OPAMROOT=${OPAMROOT:-${QP_ROOT}/external/opam}
+                  echo ${QP_ROOT}/bin \
+                  | sh ${QP_ROOT}/external/opam_installer.sh 
 EOF
                 rm ${QP_ROOT}/external/opam_installer.sh
-                source ${OPAMROOT}/opam-init/init.sh > /dev/null 2> /dev/null || true
-                opam switch create ocaml-base-compiler.4.07.1     || exit 1
+#                source ${OPAMROOT}/opam-init/init.sh > /dev/null 2> /dev/null || true
+#                opam switch create ocaml-base-compiler.4.07.1     || exit 1
+
                 opam init --verbose --yes --compiler=4.07.1 --disable-sandboxing
                 eval $(opam env)
 EOF
diff --git a/docs/source/research.bib b/docs/source/research.bib
index e6c75b9e..f0c0648c 100644
--- a/docs/source/research.bib
+++ b/docs/source/research.bib
@@ -1,6 +1,6 @@
 %%% ARXIV TO BE UPDATED %%%
 @article{Giner2019Jul,
-        author = {Giner, Emmanuel and Scemama, Anthony and Toulouse, Julien and Loos, Pierre-Fran{\ifmmode\mbox{\c{c}}\else\c{c}\fi}ois},
+        author = {Giner, Emmanuel and Scemama, Anthony and Toulouse, Julien and Loos, Pierre-Fran{\c{c}}ois},
         title = {{Chemically Accurate Excitation Energies With Small Basis Sets}},
         journal = {arXiv},
         year = {2019},