%0 Journal Article %A Jain, Madhu %A Kaur, Sandeep %T Bernoulli vacation model for $M^{X} / G / 1$ unreliable server retrial queue with bernoulli feedback, balking and optional service %J RAIRO. Operations Research %D 2021 %P S2027-S2053 %V 55 %I EDP-Sciences %U https://www.numdam.org/articles/10.1051/ro/2020074/ %R 10.1051/ro/2020074 %G en %F RO_2021__55_S1_S2027_0