SASIKUMAR, Raman; VIJAYAKUMAR, Velusamy. Approximate controllability of second-order impulsive integro-differential systems involving state-dependent delay and damping effects via resolvent operator. Nonlinear Analysis: Modelling and Control, [S. l.], v. 31, n. 4, p. 938–957, 2026. DOI: 10.15388/namc.2026.31.47459. Disponível em: https://www.journals.vu.lt/nonlinear-analysis/article/view/47459. Acesso em: 8 jul. 2026.