@inproceedings{DBLP:conf/soda/ChistikovKMSW17,
  title = "On Rationality of Nonnegative Matrix Factorization",
  author = "Dmitry Chistikov and Stefan Kiefer and Ines Maru\v{s}i\'{c} and Mahsa Shirmohammadi and James Worrell",
  year = "2017",
  booktitle = "Proceedings of the 28th Annual {ACM-SIAM} Symposium on Discrete Algorithms {(SODA)}",
  pages = "1290--1305",
  url = "http://dx.doi.org/10.1137/1.9781611974782.84",
  doi = "10.1137/1.9781611974782.84",
}