@article{AA_2019_31_3_a6,
     author = {G. Kresin and V. Maz'ya},
     title = {Sharp estimates for the gradient of solutions to the heat equation},
     journal = {Algebra i analiz},
     pages = {136--153},
     publisher = {mathdoc},
     volume = {31},
     number = {3},
     year = {2019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AA_2019_31_3_a6/}
}