1.
Li C, Agarwal RP, Ou Z-Q. Existence of three nontrivial solutions for a class of fourth-order elliptic equations. TMNA [Internet]. 2018 Apr. 22 [cited 2024 Apr. 23];51(2):331-44. Available from: https://apcz.umk.pl/TMNA/article/view/TMNA.2018.001