@article{10_4153_CJM_1970_117_0,
     author = {Mendelsohn, N. S.},
     title = {A {Theorem} on {Steiner} {Systems}},
     journal = {Canadian journal of mathematics},
     pages = {1010--1015},
     year = {1970},
     volume = {22},
     number = {5},
     doi = {10.4153/CJM-1970-117-0},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1970-117-0/}
}