@article{MAT_1963_7_6_a2,
     author = {D. F. Adams},
     title = {Vector fields on spheres},
     journal = {Matematika},
     pages = {49--80},
     publisher = {mathdoc},
     volume = {7},
     number = {6},
     year = {1963},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MAT_1963_7_6_a2/}
}