@article{Pruesse1994, 
     author = "Pruesse, Gara and Ruskey, Frank", 
     doi = "10.1137/S0097539791202647", 
     issn = "0097-5397", 
     journal = "SIAM Journal on Computing", 
     keyword = "05c45,06a05,06a06,1,68q25,adverb,ams subject classifications,collegiate dictionary,combinatorial gray code,fast,in quick succession,introduction,is,linear extension,of,one definition of the,paper is to show,poset,s,that the linear extensions,the purpose of this,transposition,webster", 
     link = "http://epubs.siam.org/doi/abs/10.1137/S0097539791202647", 
     number = "2", 
     pages = "373--386", 
     title = "Generating Linear Extensions Fast", 
     uri = "http://epubs.siam.org/doi/abs/10.1137/S0097539791202647", 
     volume = "23", 
     year = "1994", 
}

Problems: 101