@article{CRMATH_2012__350_21-22_929_0,
     author = {Rupel, Dylan},
     title = {Proof of the {Kontsevich} non-commutative cluster positivity conjecture},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {929--932},
     publisher = {Elsevier},
     volume = {350},
     number = {21-22},
     year = {2012},
     doi = {10.1016/j.crma.2012.10.034},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2012.10.034/}
}