@article{GDZPPN002205866,
title = {The zero set of a solution of a parabolic equation.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {390},
year = {1988},
pages = {79-96},
zbl = {0644.35050},
url = {http://dml.mathdoc.fr/item/GDZPPN002205866}
}
Angenent, Sigurd. The zero set of a solution of a parabolic equation.. Journal für die reine und angewandte Mathematik, Tome 390 (1988) pp. 79-96. http://gdmltest.u-ga.fr/item/GDZPPN002205866/