Geodesic
The periodic solutions of second order systems
Differencialʹnye uravneniâ, Tome 10 (1974) no. 9, pp. 1560-1564 
V. V. Amel'kin; I. V. Gaishun. The periodic solutions of second order systems. Differencialʹnye uravneniâ, Tome 10 (1974) no. 9, pp. 1560-1564. http://geodesic.mathdoc.fr/item/DE_1974_10_9_a1/
@article{DE_1974_10_9_a1,
     author = {V. V. Amel'kin and I. V. Gaishun},
     title = {The periodic solutions of second order systems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1560--1564},
     year = {1974},
     volume = {10},
     number = {9},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1974_10_9_a1/}
}
TY  - JOUR
AU  - V. V. Amel'kin
AU  - I. V. Gaishun
TI  - The periodic solutions of second order systems
JO  - Differencialʹnye uravneniâ
PY  - 1974
SP  - 1560
EP  - 1564
VL  - 10
IS  - 9
UR  - http://geodesic.mathdoc.fr/item/DE_1974_10_9_a1/
LA  - ru
ID  - DE_1974_10_9_a1
ER  - 
%0 Journal Article
%A V. V. Amel'kin
%A I. V. Gaishun
%T The periodic solutions of second order systems
%J Differencialʹnye uravneniâ
%D 1974
%P 1560-1564
%V 10
%N 9
%U http://geodesic.mathdoc.fr/item/DE_1974_10_9_a1/
%G ru
%F DE_1974_10_9_a1

Voir la notice de l'article provenant de la source Math-Net.Ru