Y. Akdim, J. Bennouna, A. Bouajaja & M. Mekkour. (1970). Renormalized Solutions for Nonlinear Parabolic Systems with Three Unbounded Nonlinearities in Weighted Sobolev Spaces. Analysis in Theory and Applications. 29 (3). 234-254. doi:10.4208/ata.2013.v29.n3.4