Geometry of Carnot-Carathéodory spaces, quasiconformal analysis, and geometric measure theory. Vodopyanov, S.K. — 2003 Vladikavkazskiĭ Matematicheskiĭ Zhurnal
Superposition operators in the Lebesgue spaces and differentiability of quasiadditive set functions. Vodopyanov, S.K.; Ukhlov, A.D. — 2002 Vladikavkazskiĭ Matematicheskiĭ Zhurnal