@article{Matsui2010, 
     author = "Matsui, Yasuko and Uehara, Ryuhei and Uno, Takeaki", 
     doi = "10.1016/j.tcs.2010.06.007", 
     issn = "03043975", 
     journal = "Theoretical Computer Science", 
     keyword = "Chordal graph,Clique tree,Enumeration,Perfect sequence", 
     link = "http://www.sciencedirect.com/science/article/pii/S0304397510003415 http://linkinghub.elsevier.com/retrieve/pii/S0304397510003415", 
     month = "sep", 
     number = "40-42", 
     pages = "3635--3641", 
     title = "Enumeration of the Perfect Sequences of a Chordal Graph", 
     uri = "http://www.sciencedirect.com/science/article/pii/S0304397510003415", 
     volume = "411", 
     year = "2010", 
}

Problems: 38