@article{DE_1989_25_7_a25,
     author = {L. N. Gurvits},
     title = {A simple proof of {Goka's} conjecture},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1272},
     year = {1989},
     volume = {25},
     number = {7},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1989_25_7_a25/}
}