Bolojan-Nica, Octavia, Gennaro Infante, and Paolamaria Pietramala. “Existence Results for Impulsive Systems With Initial Nonlocal Conditions”. Mathematical Modelling and Analysis 18, no. 5 (December 1, 2013): 599-611. Accessed December 2, 2024. https://mma.vgtu.lt/index.php/MMA/article/view/4140.