List of Articles Reneging Open Access Article Abstract Page Full-Text 1 - A Study on State Dependent Accessible and Second Optional Service Queue with Impatient and Feedback Customers Vijaya Laxmi Pikkala Girija Bhavani Edadasari Open Access Article Abstract Page Full-Text 2 - Discrete Time Analysis of Multi-Server Queueing System with Multiple Working Vacations and Reneging of Customers Vijaya Laxmi Pikkala Wondewosen Kassahun 20.1001.1.22286225.2019.9.1.1.4 Open Access Article Abstract Page Full-Text 3 - Bat Algorithm for Optimal Service Parameters in an Impatient Customer N-Policy Vacation Queue Vijaya Laxmi Pikkala 20.1001.1.22286225.2019.9.2.3.8 Open Access Article Abstract Page Full-Text 4 - ANALYSIS OF A DISCRETE-TIME IMPATIENT CUSTOMER QUEUE WITH BERNOULLI-SCHEDULE VACATION INTERRUPTION P. Vijaya Laxmi K. Jyothsna