1.
GEORGIEVA A, KOSTADINOV S. APPROXIMATION METHODS FOR THE SOLUTIONS OF IMPULSE DIFFERENTIAL EQUATIONS. Tamkang J. Math. [Internet]. 1999 Dec. 1 [cited 2024 May 7];30(4):263-9. Available from: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4232