@article{userspreferguetzlijpegoversamesized,
  title = {Users prefer Guetzli JPEG over same-sized libjpeg},
  author = {Jyrki Alakuijala and Robert Obryk and Zoltan Szabadka and Jan Wassenberg},
  year = {2017},
  eprint = {1703.04416},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1703.04416v1},
}