Bazaly В. V., Skrypnik , I. V. and Tedeev , A. F. (1992) “Conferences on nonlinear problems of mathematical physics and problems with free boundaries”, Ukrains’kyi Matematychnyi Zhurnal, 44(2), pp. 295-297. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/7846 (Accessed: 2June2024).