@article{10_4153_CJM_1973_038_3,
     author = {Sichler, J.},
     title = {Testing {Categories} and {Strong} {Universality}},
     journal = {Canadian journal of mathematics},
     pages = {370--385},
     year = {1973},
     volume = {25},
     number = {2},
     doi = {10.4153/CJM-1973-038-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1973-038-3/}
}