@article{Korsh1998, 
     author = "Korsh, James F. and Lipschutz, Seymour", 
     doi = "10.1016/S0020-0190(97)00215-9", 
     issn = "00200190", 
     journal = "Information Processing Letters", 
     keyword = "Binary trees,Combinatorial algorithms,Combinatorial problems,Data structures,Loopless generation,k-ary trees", 
     link = "http://www.sciencedirect.com/science/article/pii/S0020019097002159 http://linkinghub.elsevier.com/retrieve/pii/S0020019097002159", 
     month = "mar", 
     number = "5", 
     pages = "235--240", 
     title = "Shifts and loopless generation of k-ary trees", 
     uri = "http://www.sciencedirect.com/science/article/pii/S0020019097002159", 
     volume = "65", 
     year = "1998", 
}

Problems: 312