Karpinski, M.; Schudy, W. (2009). "Linear time approximation schemes for the Gale-Berlekamp game and related minimization problems". Proceedings of the 41st annual ACM symposium on Symposium on theory of computing – STOC '09. p. 313. arXiv:0811.3244. doi:10.1145/1536414.1536458. ISBN9781605585062.
Ailon, N.; Charikar, M.; Newman, A. (2005). "Aggregating inconsistent information". Proceedings of the thirty-seventh annual ACM symposium on Theory of computing – STOC '05. p. 684. doi:10.1145/1060590.1060692. ISBN1581139608.
Karpinski, M.; Schudy, W. (2009). "Linear time approximation schemes for the Gale-Berlekamp game and related minimization problems". Proceedings of the 41st annual ACM symposium on Symposium on theory of computing – STOC '09. p. 313. arXiv:0811.3244. doi:10.1145/1536414.1536458. ISBN9781605585062.