3 citations to https://www.mathnet.ru/eng/dan40124
  1. S. N. Kudryavtsev, “Extension of Functions from Isotropic Nikol'skii–Besov Spaces and Their Approximation together with Derivatives”, Math. Notes, 108:5 (2020), 688–696  mathnet  crossref  crossref  mathscinet  isi  elib
  2. I. M. Pupyshev, “The Extension of Functions of Sobolev Classes Beyond the Boundary of the Domain on Carnot Groups”, Siberian Adv. Math., 18:2 (2008), 124–141  mathnet  crossref  mathscinet  elib  elib
  3. S. K. Vodop'yanov, V. M. Gol'dstein, Yu. G. Reshetnyak, “On geometric properties of functions with generalized first derivatives”, Russian Math. Surveys, 34:1 (1979), 19–74  mathnet  crossref  mathscinet  zmath