@article{10_4007_annals_2006_163_517,
     author = {Andrei Okounkov and Rahul Pandharipande},
     title = {Gromov{\textendash}Witten theory, {Hurwitz} theory, and completed cycles},
     journal = {Annals of mathematics},
     pages = {517--560},
     publisher = {mathdoc},
     volume = {163},
     number = {2},
     year = {2006},
     doi = {10.4007/annals.2006.163.517},
     mrnumber = {2199225},
     zbl = {1105.14076},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4007/annals.2006.163.517/}
}