@article{10_4171_dm_396,
     author = {Christof Gei{\ss} and Jan Schr\"oer and Bernard Leclerc},
     title = {Factorial cluster algebras},
     journal = {Documenta mathematica},
     pages = {249--274},
     year = {2013},
     volume = {18},
     doi = {10.4171/dm/396},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/396/}
}