@article{Tiernan1970, 
     author = "Tiernan, James C.", 
     doi = "10.1145/362814.362819", 
     issn = "00010782", 
     journal = "Communications of the ACM", 
     keyword = "algorithm,circuit search algorithm,graph theory,path search algorithm,searching", 
     link = "http://dl.acm.org/citation.cfm?id=362814.362819 http://portal.acm.org/citation.cfm?doid=362814.362819", 
     month = "dec", 
     number = "12", 
     pages = "722--726", 
     publisher = "ACM", 
     title = "An efficient search algorithm to find the elementary circuits of a graph", 
     uri = "http://dl.acm.org/citation.cfm?id=362814.362819", 
     volume = "13", 
     year = "1970", 
}

Problems: 390