@article{CRMATH_2011__349_13-14_725_0,
     author = {Zhang, Changgui},
     title = {On the modular behaviour of the infinite product $ (1-x)(1-xq)(1-x{q}^{2})(1-x{q}^{3})\cdots $},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {725--730},
     publisher = {Elsevier},
     volume = {349},
     number = {13-14},
     year = {2011},
     doi = {10.1016/j.crma.2011.06.019},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2011.06.019/}
}