@misc{TM_1975_136_a33,
     title = {Discussion},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {432},
     year = {1975},
     volume = {136},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1975_136_a33/}
}