Pavlačková, Martina. “A Scorza-Dragoni Approach to Dirichlet Problem With an Upper-Carathéodory Right-Hand Side”. Topological Methods in Nonlinear Analysis 44, no. 1 (April 12, 2016): 239–247. Accessed April 25, 2024. https://apcz.umk.pl/TMNA/article/view/TMNA.2014.045.