@inproceedings{Kazana2013b, 
     address = "New York, New York, USA", 
     author = "Kazana, Wojciech and Segoufin, Luc", 
     booktitle = "PODS 2013: the 32nd symposium on Principles of database systems", 
     doi = "10.1145/2463664.2463667", 
     editor = "Hull, Richard", 
     isbn = "9781450320665", 
     keyword = "bounded expansion,enumeration,first-order", 
     link = "http://dl.acm.org/citation.cfm?id=2463664.2463667 http://dl.acm.org/citation.cfm?doid=2463664.2463667", 
     month = "jun", 
     pages = "297", 
     publisher = "ACM Press", 
     title = "Enumeration of first-order queries on classes of structures with bounded expansion", 
     uri = "http://dl.acm.org/citation.cfm?id=2463664.2463667", 
     year = "2013", 
}

Problems: 195