@article{FAA_1967_1_3_a3,
     author = {M. A. Krasnosel'skii and V. V. Strygin},
     title = {Principles of rotational invariance of a completely continuous vector field},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {33--39},
     publisher = {mathdoc},
     volume = {1},
     number = {3},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1967_1_3_a3/}
}