SUSHIL KUMAR; RAVENDRA KUMAR. A Deterministic Inventory Model for Perishable Items with Time Dependent Demand and Shortages. International Journal of Mathematics And its Applications, [S. l.], v. 3, n. 4 - F, p. 105–111, 2015. Disponível em: http://ijmaa.in/index.php/ijmaa/article/view/539. Acesso em: 2 apr. 2026.