@article{1183494285,
author = {Widder, D. V.},
title = {Singular points of functions which satisfy
the partial differential equation
of the flow of heat},
journal = {Bull. Amer. Math. Soc.},
volume = {36},
number = {11},
year = {1930},
pages = { 687-694},
language = {en},
url = {http://dml.mathdoc.fr/item/1183494285}
}
Widder, D. V. Singular points of functions which satisfy
the partial differential equation
of the flow of heat. Bull. Amer. Math. Soc., Tome 36 (1930) no. 11, pp. 687-694. http://gdmltest.u-ga.fr/item/1183494285/