@article{VanBaronaigien1991, 
     author = "van Baronaigien, D.Roelants", 
     doi = "10.1016/0020-0190(91)90178-K", 
     issn = "00200190", 
     journal = "Information Processing Letters", 
     keyword = "Combinatorial problems,binary tree,binary tree sequence,designs of algorithms,loopless algorithm", 
     link = "http://www.sciencedirect.com/science/article/pii/002001909190178K http://linkinghub.elsevier.com/retrieve/pii/002001909190178K", 
     month = "aug", 
     number = "4", 
     pages = "189--194", 
     title = "A loopless algorithm for generating binary tree sequences", 
     uri = "http://www.sciencedirect.com/science/article/pii/002001909190178K", 
     volume = "39", 
     year = "1991", 
}

Problems: 350