%0 Journal Article %A V. G. Kopp %T Two term bundles of fiber bundles in 3-dimensional pseudo-Euclidean space %J Učënye zapiski Kazanskogo universiteta. Seriâ Fiziko-matematičeskie nauki %D 1963 %P 49-58 %V 123 %N 1 %U http://geodesic.mathdoc.fr/item/UZKU_1963_123_1_a2/ %G ru %F UZKU_1963_123_1_a2