por Arnolʹd, V. I, 1937-2010 [autor] | Arnolʹd, V. I, 1937-2010. Mathematical understanding of nature | Sosinskiæi, A. B. (Alekseæi Bronislavovich) [traductor] | Sipacheva, Olga [traductor].
por Prasolov, V. V. (Viktor Vasil´evich) [autor] | Sipacheva, Olga [traductor].