TY - JOUR AU - Slater, Peter J. TI - A Characterization of Soft Hypergraphs JO - Canadian mathematical bulletin PY - 1978 SP - 335 EP - 337 VL - 21 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1978-058-5/ DO - 10.4153/CMB-1978-058-5 ID - 10_4153_CMB_1978_058_5 ER -