@techreport{TaylorParberry2011TRSokoban,
  author = {Taylor, Joshua and Parberry, Ian},
  title = {Procedural Generation of {S}okoban Levels},
  institution = {Laboratory for Recreational Computing, Dept. of Computer Science \& Engineering,
                 Univ.\ of North Texas},
  number = {LARC--2011--01},
  year = {2011},
  month={February},
 }
 
 @inproceedings{TaylorParberry2011SokobanGameOn,
  author = {Taylor, Joshua and Parberry, Ian},
  title = {Procedural Generation of {S}okoban Levels},
  booktitle = {Proceedings of the 6th International North American Conference on Intelligent Games and Simulation ({GAMEON-NA})},
  location = {Troy NY},
  pages = {5--12},
  publisher={{EUROSIS}},
  year = 2011
}
 
@misc{Taylor2011SokobanWebsite,
  author = {Taylor, Joshua and Parberry, Ian},
  title = {Sokoban},
  howpublished={\url{https://ianparberry.com/research/sokoban/}},
  year = {2011}
}