@article{10_1090_jams_890,
     author = {Gross, Mark and Hacking, Paul and Keel, Sean and Kontsevich, Maxim},
     title = {Canonical bases for cluster algebras},
     journal = {Journal of the American Mathematical Society},
     pages = {497--608},
     year = {2018},
     volume = {31},
     number = {2},
     doi = {10.1090/jams/890},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/jams/890/}
}