%0 Journal Article %A V. V. Vishnevskii %T The contribution of Bolyai, Gauss, and Lobachevskii to the discovery of non-Euclidean geometry (on the~200th anniversary of the birth of J\'anos Bolyai) %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2002 %P 3-7 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2002_11_a0/ %G ru %F IVM_2002_11_a0