@article{01750234,
title = {On periodic solutions of abstract differential equations.},
journal = {Abstract and Applied Analysis},
volume = {6},
year = {2001},
pages = {489-499},
doi = {10.1155/S1085337501000537},
zbl = {1010.34053},
language = {en},
url = {http://dml.mathdoc.fr/item/01750234}
}
Eidelman, Y.S.; Tikhonov, I.V. On periodic solutions of abstract differential equations.. Abstract and Applied Analysis, Tome 6 (2001) pp. 489-499. doi : 10.1155/S1085337501000537. http://gdmltest.u-ga.fr/item/01750234/