Ahmad B, Nieto JJ. Existence of solutions for anti-periodic boundary value problems involving fractional differential equations via Leray-Schauder degree theory. TMNA [Internet]. 2010 Apr. 23 [cited 2024 Apr. 26];35(2):295-304. Available from: https://apcz.umk.pl/TMNA/article/view/TMNA.2010.017