Afanas’eva O, Ryazanov V, Salimov R. Boundary behavior of the Sobolev classes with critical exponent . Dopov. Nac. akad. nauk Ukr. [Internet]. 2019 Oct. 28 [cited 2026 Jun. 19];(10):3-10. Available from: https://nasu-periodicals.org.ua/index.php/dp/article/view/2476