[1]
A. V. Belyaev, “Entire solutions of the euler—poisson equations”, Ukr. Mat. Zhurn., vol. 56, no. 5, pp. 677–686, May 2004, Accessed: Feb. 16, 2026. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/3787