@article{AM2_1976__14_136616,
     author = {S.R. Caradus},
     title = {An equational approach to products of relatively regular operators. {(Short} {Communication).}},
     journal = {Aequationes mathematicae},
     pages = {508--509},
     publisher = {mathdoc},
     volume = {14},
     year = {1976},
     url = {http://geodesic.mathdoc.fr/item/AM2_1976__14_136616/}
}