@article{FAA_1987_21_1_a3,
     author = {F. L. Zak},
     title = {Structure of {Gauss} maps},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {39--50},
     publisher = {mathdoc},
     volume = {21},
     number = {1},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1987_21_1_a3/}
}