1.
Lin H- li, Wag H- chiuan, Wu T- fang. A Palais-Smale approach to Sobolev subcritical operators. TMNA [Internet]. 2002 Dec. 1 [cited 2024 Jul. 22];20(2):393-407. Available from: https://apcz.umk.pl/TMNA/article/view/TMNA.2002.042