@article{Saitoh2010b, 
     author = "Saitoh, Toshiki and Otachi, Yota and Yamanaka, Katsuhisa and Uehara, Ryuhei", 
     doi = "10.1016/j.jda.2011.11.001", 
     isbn = "3642106307", 
     issn = "15708667", 
     journal = "Journal of Discrete Algorithms", 
     keyword = "Bipartite permutation graph,Counting,Dyck path,Enumeration,Motzkin path,Random generation", 
     link = "http://www.sciencedirect.com/science/article/pii/S1570866711001006 http://linkinghub.elsevier.com/retrieve/pii/S1570866711001006", 
     month = "jan", 
     number = "1", 
     pages = "84--97", 
     title = "Random generation and enumeration of bipartite permutation graphs", 
     uri = "http://www.sciencedirect.com/science/article/pii/S1570866711001006", 
     volume = "10", 
     year = "2012", 
}

Problems: 37