@article{GDZPPN002490269,
title = {Extremal Solutions for Nonlinear Parabolic Problems with Discontinuities.},
journal = {Monatshefte f\"ur Mathematik},
volume = {123},
year = {1997},
pages = {119-132},
zbl = {0879.35067},
url = {http://dml.mathdoc.fr/item/GDZPPN002490269}
}
Cardinali, T.; Fiacca, A.; Papageorgiou, Nikolaos S. Extremal Solutions for Nonlinear Parabolic Problems with Discontinuities.. Monatshefte für Mathematik, Tome 123 (1997) pp. 119-132. http://gdmltest.u-ga.fr/item/GDZPPN002490269/