ENCODING has been replaced by BIBTEX_INPUT_ENCODING and OUTPUT_ENCODING
@incollection{cm-ct-14, Author = {Colin~de Verdière, Éric and de Mesmay, Arnaud}, Booktitle = {Images des mathématiques}, Date-Added = {2016-01-30 08:36:46 +0000}, Date-Modified = {2016-02-01 19:58:57 +0000}, Publisher = {CNRS}, Title = {De la carte au territoire~?}, Year = {2014}}