N.I. Lobachevskiĭ : zagadki biografii /
Gudkov, D. A. (Dmitriĭ Andreevich)
Ministerstvo nauki, vyssheĭ shkoly i tekhnicheskoĭ politiki rossiĭskoĭ federatsii.
Nizhniĭ Novorod : Izd-vo Nizhegorodskogo universiteta,
1992.
At head of title: Ministerstvo Nauki, Vyssheĭ Shkoly i Tekhnicheskoĭ Politiki Rossiĭskoĭ Federatsii.
Includes bibliographical references.
Lobachevskiĭ, N. I. (Nikolaĭ Ivanovich), 1792-1856.
Mathematicians