The Diffraction Problem and Verigin Problem of Quasilinear Parabolic Equation in Divergence Form for the One-dimensional Case. J. Part. Diff. Eq. [Internet]. 1992 May 1 [cited 2025 Dec. 5];5(1):35-42. Available from: https://www.global-sci.com/index.php/jpde/article/view/3701