ABHAY KUMAR SETHI; JUNG RYE LEE. NECESSARY AND SUFFICIENT CONDITIONS OF FIRST ORDER NEUTRAL DIFFERENTIAL EQUATIONS. Journal of Computational Analysis and Applications (JoCAAA), [S. l.], v. 32, n. 1, p. 1–9, 2024. Disponível em: http://eudoxuspress.com/index.php/pub/article/view/37. Acesso em: 1 sep. 2024.