Damázio, P.D. and Rojas-Medar, M.A. 2018. On some questions of the weak solutions of evolution equations for magnetohydrodynamic type. Proyecciones (Antofagasta, On line). 16, 2 (Apr. 2018), 83-97. DOI:https://doi.org/10.22199/S07160917.1997.0002.00001.