G. AYYAPPAN; K. SATHIYA. Time dependent solution of Non-Markovian queue with two phases of service and general vacation time distribution. Malaya Journal of Matematik, India, v. 1, n. 04, p. 20–29, 2013. DOI: 10.26637/mjm104/003. Disponível em: https://www.malayajournal.org/index.php/mjm/article/view/367. Acesso em: 16 jul. 2024.