Mizuta, Yoshihiro, Takao Ohno, Tetsu Shimomuraand, and Naoki Shioji. 2010. “Compact Embeddings for Sobolev Spaces of Variable Exponents and Existence of Solutions for Nonlinear Elliptic Problems Involving the p(x)-Laplacian and Its Critical Exponent”. Annales Fennici Mathematici 35 (1):115-30. https://doi.org/10.5186/aasfm.2010.3507.