@article{VMUMM_1998_1_a7,
     author = {S. I. Sokolovskaya},
     title = {On connections induced on surfaces of a projective space by the {Bortolotti} equipments},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {33--37},
     publisher = {mathdoc},
     number = {1},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1998_1_a7/}
}