@article{10_4153_CJM_2010_036_3,
     author = {Hare, Kevin G.},
     title = {More {Variations} on the {Sierpi\'nski} {Sieve}},
     journal = {Canadian journal of mathematics},
     pages = {543--562},
     year = {2010},
     volume = {62},
     number = {3},
     doi = {10.4153/CJM-2010-036-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2010-036-3/}
}