ACCRETIVITY OF THE GENERAL SECOND ORDER LINEAR DIFFERENTIAL OPERATOR Article Maz’ya V.G., Verbitsky I.E. Acta Mathematica Sinica, English Series. Springer Verlag. Vol. 35. 2019. P. 832-852
SECOND-ORDER REGULARITY FOR PARABOLIC P-LAPLACE PROBLEMS Article Cianchi A., Maz’ya V.G. Journal of Geometric Analysis. Springer New York LLC. 2019.