@article{GDZPPN002300907, title = {Rauch's Variational Formula and the Heat Equation.}, journal = {Mathematische Annalen}, volume = {180}, year = {1969}, pages = {53-59}, zbl = {0159.22403}, url = {http://dml.mathdoc.fr/item/GDZPPN002300907} }
Mayer, A. Rauch's Variational Formula and the Heat Equation.. Mathematische Annalen, Tome 180 (1969) pp. 53-59. http://gdmltest.u-ga.fr/item/GDZPPN002300907/