@article{VMUMM_1994_2_a0,
     author = {L. E. Evtushik and A. K. Rybnikov},
     title = {The influence of {Lobachevskii's} ideas on the development of differential geometry},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {3--14},
     publisher = {mathdoc},
     number = {2},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1994_2_a0/}
}