BritovN. A. “On the Triviality Condition for the Kernel of the Linearized First Boundary-Value Problem for a System of Equations of Magnetic Hydrodynamics”. Ukrains’kyi Matematychnyi Zhurnal 47, no. 2 (February 25, 1995): 168–173. Accessed November 24, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/5400.