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 August 28, 2025. https://jbem.vilniustech.lt/index.php/MMA/article/view/4140.