TY - JOUR AU - A.L. FOSTER TI - Families of Algebras with Unique (Sub-) Direct Factorization: Equational Characterization of Factorization. JO - Mathematische Annalen PY - 1966 SP - 302 EP - 326 VL - 166 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MAN_1966__166_161467/ ID - MAN_1966__166_161467 ER -