@article{RM_1960_15_3_a22,
     author = {I. M. Gel'fand},
     title = {On a~paper by {K.~Hoffman} and {I.\,M.~Singer}},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     publisher = {mathdoc},
     volume = {15},
     number = {3},
     year = {1960},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1960_15_3_a22/}
}