[1]
“INVARIANTE AND REDUCTION OF THE CLASS y¢ = F(x)yn , (n ¹ 0 ),UNDER STRETCHING GROUPS”, ANJS, vol. 11, no. 1, pp. 90–93, Apr. 2008, Accessed: Dec. 22, 2024. [Online]. Available: https://anjs.edu.iq/index.php/anjs/article/view/1397