С. К. Водопьянов, А. Д. Ухлов, “Функции множества и их приложения в теории пространств Лебега и Соболева. II”, Матем. тр., 7:1 (2004), 13–49 ; S. K. Vodop'yanov, A. D.-O. Ukhlov, “Set Functions and Their Applications in the Theory of Lebesgue and Sobolev Spaces. II”, Siberian Adv. Math., 15:1 (2005), 91–125
Monti R., Cassano F.S., “Degenerate perturbations of a two–phase transition model”, Journal of Convex Analysis, 10:1 (2003), 1–34
С. К. Водопьянов, “Геометрия пространств Карно — Каратеодори, квазиконформный анализ и геометрическая теория меры”, Владикавк. матем. журн., 5:1 (2003), 14–34
Capogna L., Han Q., “Pointwise Schauder estimates for second order linear equations in Carnot groups”, Harmonic Analysis at Mount Holyoke, Contemporary Mathematics Series, 320, 2003, 45–69
Greshnov A., “John domains and homogeneous cone condition on the Carnot group”, Progress in Analysis, 2003, 57–62
Romanovskii N.N., “Korn–type inequalities on the Heisenberg groups and the Neumann problem for linear subelliptic systems”, Doklady Mathematics, 65:2 (2002), 165–168
А. В. Грешнов, “О существовании областей, удовлетворяющих условиям внутренней и внешней спиралей”, Матем. тр., 5:2 (2002), 138–154 ; A. V. Greshnov, “Existence of the Domains that Satisfy the Interior and Exterior Corkscrew Conditions”, Siberian Adv. Math., 14:3 (2004), 1–15
Bonk M., Heinonen J., Koskela P., “Uniformizing Gromov hyperbolic spaces – Introduction”, Asterisque, 2001, no. 270, 1
Buckley S.M., “Inequalities of John–Nirenberg type in doubling spaces”, Journal D Analyse Mathematique, 79 (1999), 215–240
Garofalo N., Nhieu D.M., “Lipschitz continuity, global smooth approximations and extension theorems for Sobolev functions in Carnot–Caratheodory spaces”, Journal D Analyse Mathematique, 74 (1998), 67–97