@article{10_37236_664,
     author = {Guoce Xin and Jing-Feng Xu},
     title = {A short approach to {Catalan} numbers modulo \(2^r\)},
     journal = {The electronic journal of combinatorics},
     year = {2011},
     volume = {18},
     number = {1},
     doi = {10.37236/664},
     zbl = {1234.05018},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/664/}
}