Shirov, I. I <br/><br/>
On the problem of the centre and the focus in the theory of nonlinear oscillations = Problema centra i fokusa v teorii nelinejnyh kolebanij 
I. I. Shirov 
 - Kiev  Institute of Mathematics Academy of Sciences of the Ukrainian SSR  1961 
 - 9 p  20 cm 
<br/><br/> 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" 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mecanica<br/>Mecanica neliniara<br/>Oscilatii neliniare<br/>Simpozion
<br/><br/><label>Dewey Class. No.: </label>531/534(042)