N. Alon, C. Avin, M. Koucky, G. Kozma, Z. Lotker, and M. Tuttle. SPAA '08: Proceedings of the twentieth annual symposium on Parallelism in algorithms and architectures, page 119--128. New York, NY, USA, ACM, (2008)
C. Cooper, and A. Frieze. SODA '03: Proceedings of the fourteenth annual ACM-SIAM symposium on Discrete algorithms, page 140--147. Philadelphia, PA, USA, Society for Industrial and Applied Mathematics, (2003)