SANTHI, K.; MURUGAN, S. P. B.; SENTHAMIZHSELVI, T. A Markovian Queue With Feedback and Second Optional Working Vacation. Communications in Mathematics and Applications, [S. l.], v. 15, n. 2, p. 865–873, 2024. DOI: 10.26713/cma.v15i2.2715. Disponível em: http://www.journals.rgnpublications.com/index.php/cma/article/view/2715. Acesso em: 16 jun. 2025.