P. BEENA; K. P. JOSE. Modelling of an M/M/2 production inventory system with multiple vacation. Malaya Journal of Matematik, India, v. 8, n. 02, p. 356–362, 2020. DOI: 10.26637/MJM0802/0007. Disponível em: https://www.malayajournal.org/index.php/mjm/article/view/1408. Acesso em: 16 jul. 2024.