@article{SM_1970_10_3_a6,
     author = {A. Ya. Helemskii},
     title = {On~the homological dimension of normed modules over {Banach} algebras},
     journal = {Sbornik. Mathematics},
     pages = {399--411},
     publisher = {mathdoc},
     volume = {10},
     number = {3},
     year = {1970},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1970_10_3_a6/}
}