DEVI, V. M (X)/G/1 WITH TWO PHASE OF HETEROGENEOUS SERVICE UNDER DIFFERENT VACATION POLICY , RESTRICTED ADMISSIBILITY AND SET UP. JOURNAL OF ADVANCES IN MATHEMATICS, [S. l.], v. 9, n. 5, p. 2687–2695, 2014. DOI: 10.24297/jam.v9i5.2351. Disponível em: https://rajpub.com/index.php/jam/article/view/2351. Acesso em: 22 jul. 2024.