@article{Yamanaka2009, 
     author = "Yamanaka, Katsuhisa and Nakano, Shin-ichi", 
     doi = "10.7155/jgaa.00174", 
     issn = "1526-1719", 
     journal = "Journal of Graph Algorithms and Applications", 
     link = "http://jgaa.info/getPaper?id=174", 
     number = "1", 
     pages = "5--18", 
     title = "Listing All Plane Graphs", 
     uri = "http://jgaa.info/getPaper?id=174", 
     volume = "13", 
     year = "2009", 
}

Problems: 17 18