ENCODING has been replaced by BIBTEX_INPUT_ENCODING and OUTPUT_ENCODING
@inproceedings{grilo2015qma, Author = {Grilo, Alex Bredariol and Kerenidis, Iordanis and Sikora, Jamie}, Booktitle = {Mathematical Foundations of Computer Science 2015}, Date-Added = {2016-02-01 19:45:46 +0000}, Date-Modified = {2016-02-01 19:45:55 +0000}, Pages = {163--174}, Title = {QMA with subset state witnesses}, Year = {2015}}