@article{FAA_1973_7_1_a6,
     author = {J. H. Bernstein and I. M. Gel'fand and S. I. Gel'fand},
     title = {Schubert cells and flag space cohomologies},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {64--65},
     publisher = {mathdoc},
     volume = {7},
     number = {1},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1973_7_1_a6/}
}