SleptsovaI. P., & ShishkovA. E. (2005). Phragmen-Lindelof Principle for Some Quasilinear Evolution Equations of the Second Order. Ukrains’kyi Matematychnyi Zhurnal, 57(2), 239–249. Retrieved from https://umj.imath.kiev.ua/index.php/umj/article/view/3591