@article{MAN_1966__166_161467,
     author = {A.L. FOSTER},
     title = {Families of {Algebras} with {Unique} {(Sub-)} {Direct} {Factorization:} {Equational} {Characterization} of {Factorization.}},
     journal = {Mathematische Annalen},
     pages = {302--326},
     publisher = {mathdoc},
     volume = {166},
     year = {1966},
     zbl = {0163.26603},
     url = {http://geodesic.mathdoc.fr/item/MAN_1966__166_161467/}
}