J. Daida, D. Ward, A. Hilss, S. Long, M. Hodges, and J. Kriesel. Proceedings of the 2004 IEEE Congress on Evolutionary
Computation, page 1225--1232. Portland, Oregon, IEEE Press, (20-23 June 2004)
L. Ribeiro, P. Saverese, and D. Figueiredo. Proceedings of the 23rd ACM SIGKDD International Conference on
Knowledge Discovery and Data Mining, Halifax, NS, Canada, August 13
- 17, 2017, page 385--394. ACM, (2017)