@article{FAA_1983_17_3_a15,
     author = {R. N. Levi},
     title = {Cohomology invariants of collections of essentially commuting operators},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {79--80},
     publisher = {mathdoc},
     volume = {17},
     number = {3},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1983_17_3_a15/}
}