%0 Journal Article %A Slater, Peter J. %T A Characterization of Soft Hypergraphs %J Canadian mathematical bulletin %D 1978 %P 335-337 %V 21 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1978-058-5/ %R 10.4153/CMB-1978-058-5 %F 10_4153_CMB_1978_058_5