@article{10_4153_CJM_1970_114_6,
     author = {Ball, Eugene S.},
     title = {Weak {Normality} and {Related} {Properties}},
     journal = {Canadian journal of mathematics},
     pages = {997--1001},
     year = {1970},
     volume = {22},
     number = {5},
     doi = {10.4153/CJM-1970-114-6},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1970-114-6/}
}