da Silva, Severino Horacio, and Antônio Luiz Pereira. “A Gradient Flow Generated by a Nonlocal Model of a Neutral Field in an Unbounded Domain”. Topological Methods in Nonlinear Analysis 51, no. 2 (May 23, 2018): 583–598. Accessed July 22, 2024. https://apcz.umk.pl/TMNA/article/view/TMNA.2018.004.