@incollection{JEDP_1995____A21_0,
     author = {Daniel W. Stroock},
     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 = {https://proceedings.centre-mersenne.org/item/JEDP_1995____A21_0/}
}