@article{Wright1986, 
     author = "Wright, Robert Alan and Richmond, Bruce and Odlyzko, Andrew and McKay, Brendan D.", 
     doi = "10.1137/0215039", 
     issn = "0097-5397", 
     journal = "SIAM Journal on Computing", 
     keyword = "1,a given size,all rooted trees of,an,an algorithm for generating,ation,beyer and hedetniemi exhibit,constant time generation,constructive enumer-,free tree,in 1,introduction,lexicographic order,loop-free algorithm,nonisomorphic trees,successor function to traverse,the method uses a,unrooted tree", 
     link = "http://epubs.siam.org/doi/abs/10.1137/0215039", 
     month = "may", 
     number = "2", 
     pages = "540--548", 
     title = "Constant Time Generation of Free Trees", 
     uri = "http://epubs.siam.org/doi/abs/10.1137/0215039", 
     volume = "15", 
     year = "1986", 
}

Problems: 357