1. Babaioff, M., Immorlica, N., Kleinberg, R.: Matroids, secretary problems, and online mechanisms. In: Proceedings of the 18th Annual ACM-SIAM Symposium on Discrete Algorithms, January 2007, pp. 434–443 (2008)
2. Birnbaum, B., Mathieu, C.: On-line bipartite matching made simple. SIGACT News 39, 80–87 (2008)
3. Borodin, A., El-Yaniv, R.: Online Computation and Competitive Analysis. Cambridge University Press, Cambridge (1998)
4. Ferguson, T.: Who solved the secretary problem? Stat. Sci. 4, 282–289 (1989)
5. Freeman, P.R.: The secretary problem and its extensions: a review. Int. Stat. Rev. 51, 189–206 (1983)