The existence of a continuous periodic and almost periodic solutions of the nonlinear integral inclusion is established by means of the generalized Schauder fixed point theorem.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-ba58-3-6, author = {Rados\l aw Pietkun}, title = {Periodic and Almost Periodic Solutions of Integral Inclusions}, journal = {Bulletin of the Polish Academy of Sciences. Mathematics}, volume = {58}, year = {2010}, pages = {239-245}, zbl = {1215.45003}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-ba58-3-6} }
Radosław Pietkun. Periodic and Almost Periodic Solutions of Integral Inclusions. Bulletin of the Polish Academy of Sciences. Mathematics, Tome 58 (2010) pp. 239-245. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-ba58-3-6/