ENCODING has been replaced by BIBTEX_INPUT_ENCODING and OUTPUT_ENCODING
@article{DISW13, Author = {T. Decker and G. Ivanyos and M. Santha and P. Wocjan}, Date-Added = {2014-08-11 09:43:49 +0000}, Date-Modified = {2014-08-11 09:44:33 +0000}, Journal = {SIAM Journal on Computing}, Number = {5}, Pages = {1987-2007}, Title = {Hidden symmetry subgroup problem}, Volume = {42}, Year = {2013}}