@article{ASENS_2009_4_42_6_865_0,
     author = {Fock, Vladimir V. and Goncharov, Alexander B.},
     title = {Cluster ensembles, quantization and the dilogarithm},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {865--930},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {Ser. 4, 42},
     number = {6},
     year = {2009},
     doi = {10.24033/asens.2112},
     mrnumber = {2567745},
     zbl = {1180.53081},
     language = {en},
     url = {http://archive.numdam.org/articles/10.24033/asens.2112/}
}