@article{10_4153_CMB_1966_082_5,
     author = {Abramson, M. and Moser, W.},
     title = {A {Note} on {Combinations}},
     journal = {Canadian mathematical bulletin},
     pages = {675--677},
     year = {1966},
     volume = {9},
     number = {5},
     doi = {10.4153/CMB-1966-082-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1966-082-5/}
}