@article{weko_59994_1,
   author	 = "Takanori,Akiyama and Takao,Nishizeki and Nobuji,Saito",
   title	 = "NP-Completeness of the Hamiltonian Cycle Problem for Bipartite Graphs",
   journal	 = "Journal of Information Processing ",
   year 	 = "1980",
   volume	 = "3",
   number	 = "2",
   pages	 = "73--76",
   month	 = "aug"
}