@article{Shen_Li_Wang_2016, title={Sign-changing critical points for noncoercive functionals}, volume={43}, url={https://apcz.umk.pl/TMNA/article/view/TMNA.2014.022}, abstractNote={We study the existence of infinitely many sign-changing critical points and nonexistence of critical points to a class of noncoercive functionals.}, number={2}, journal={Topological Methods in Nonlinear Analysis}, author={Shen, Yaotian and Li, Zhouxin and Wang, Youjun}, year={2016}, month={Apr.}, pages={373–384} }