@article{CMJ_1998__48_4_a8,
     author = {Kahane, Charles S.},
     title = {A gradient estimate for solutions of the heat equation},
     journal = {Czechoslovak Mathematical Journal},
     pages = {711--725},
     publisher = {mathdoc},
     volume = {48},
     number = {4},
     year = {1998},
     mrnumber = {1658249},
     zbl = {0951.35017},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/CMJ_1998__48_4_a8/}
}