@article{10_4153_CJM_1973_019_8,
     author = {Longyear, Judith Q.},
     title = {Non-Existence {Criteria} for {Small} {Configurations}},
     journal = {Canadian journal of mathematics},
     pages = {213--215},
     year = {1973},
     volume = {25},
     number = {1},
     doi = {10.4153/CJM-1973-019-8},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1973-019-8/}
}