RUS
ENG
Full version
JOURNALS
// Izvestiya Vysshikh Uchebnykh Zavedenii. Matematika
// Archive
Izv. Vyssh. Uchebn. Zaved. Mat.,
1961
Number 4,
Pages
57–65
(Mi ivm1900)
On the problem of center and focus
N. V. Medvedev
Kazan State Pedagogical Institute
Received:
19.03.1959
Fulltext:
PDF file (459 kB)
Bibliographic databases:
©
Steklov Math. Inst. of RAS
, 2026
Fulltext:
PDF file (459 kB)