@incollection{JEDP_1995____A21_0, author = {Stroock, Daniel W.}, title = {An estimate on the hessian of the heat kernel}, booktitle = {}, series = {Journ\'ees \'equations aux d\'eriv\'ees partielles}, eid = {21}, pages = {1--4}, publisher = {Ecole polytechnique}, year = {1995}, mrnumber = {97b:58135}, language = {en}, url = {http://www.numdam.org/item/JEDP_1995____A21_0/} }