Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1990_48_3_a1, author = {A. A. Borisenko and Yu. A. Nikolaevskii}, title = {Surfaces with maximal curvature of the {Grassmann} image}, journal = {Matemati\v{c}eskie zametki}, pages = {12--19}, publisher = {mathdoc}, volume = {48}, number = {3}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1990_48_3_a1/} }
A. A. Borisenko; Yu. A. Nikolaevskii. Surfaces with maximal curvature of the Grassmann image. Matematičeskie zametki, Tome 48 (1990) no. 3, pp. 12-19. http://geodesic.mathdoc.fr/item/MZM_1990_48_3_a1/