A. Bonfiglioli; E.Lanconelli; F. Uguzzoni, Fundamental solutions for non-divergence form operators on stratified groups, «TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY», 2004, 356, pp. 2709 - 2737 [Scientific article]
MONTANARI A.; LANCONELLI E., Pseudoconvex Fully Nonlinear Partial Differential Operators. Strong Comparison Theorems, «JOURNAL OF DIFFERENTIAL EQUATIONS», 2004, 202 no.2, pp. 306 - 331 [Scientific article]
