TY  - GEN
AU  - Shirov, I. I
TI  - On the problem of the centre and the focus in the theory of nonlinear oscillations = Problema centra i fokusa v teorii nelinejnyh kolebanij
U1  - 531/534(042) 
PY  - 1961///
CY  - Kiev
PB  - Institute of Mathematics Academy of Sciences of the Ukrainian SSR
KW  - Mecanica
KW  - Mecanica neliniara
KW  - Oscilatii neliniare
KW  - Simpozion
N1  - Contine bibliogr. - Inaintea tit.: International Union of Theoretical and Applied Mechanics Symposium on Nonlinear Vibrations, Kiev, september 1961. - Legata impreuna cu alte lucrari ce constituie un volum legatoresc (Varia). - Pe cotorul copertii: "Kiev Symposium on nonlinear vibrations R-Z"
ER  -