@article{MAN_1969__181_161814,
     author = {A. Mayer},
     title = {Rauch's {Variational} {Formula} and the {Heat} {Equation.}},
     journal = {Mathematische Annalen},
     pages = {53--59},
     publisher = {mathdoc},
     volume = {181},
     year = {1969},
     zbl = {0159.22403},
     url = {http://geodesic.mathdoc.fr/item/MAN_1969__181_161814/}
}