@article{10_4007_annals_2018_187_1_3,
     author = {Ben Davison},
     title = {Positivity for quantum cluster algebras},
     journal = {Annals of mathematics},
     pages = {157--219},
     publisher = {mathdoc},
     volume = {187},
     number = {1},
     year = {2018},
     doi = {10.4007/annals.2018.187.1.3},
     mrnumber = {3739230},
     zbl = {06841538},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4007/annals.2018.187.1.3/}
}