KALAISELVI J; SARAVANARAJAN MC. Particle Swarm Optimization of a Single Server Retrial Queue with Delayed Repair Under Working Vacation From Optional Service to Re-Service. Contemporary Mathematics , [S. l.], v. 6, n. 1, p. 743–771, 2025. DOI: 10.37256/cm.6120255992. Disponível em: https://ojs.wiserpub.com/index.php/CM/article/view/5992. Acesso em: 15 dec. 2025.