EleevV. A. (1995) “Boundary-value problem for a mixed parabolic-hyperbolic equation of the third order”, Ukrains’kyi Matematychnyi Zhurnal, 47(1), pp. 20–29. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/5378 (Accessed: 1September2024).