AsrorovF. A. and PerestyukN. A. (1994) “Green-Samoilenko function and existence of integral sets of linear extensions of nonautonomous equations”, Ukrains’kyi Matematychnyi Zhurnal, 46(8), pp. 1067–1071. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/5659 (Accessed: 27July2024).