@article{10_4153_CJM_1997_046_6,
     author = {Okounkov, Andrei},
     title = {Proof of a {Conjecture} of {Goulden} and {Jackson}},
     journal = {Canadian journal of mathematics},
     pages = {883--886},
     year = {1997},
     volume = {49},
     number = {5},
     doi = {10.4153/CJM-1997-046-6},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1997-046-6/}
}