S. Maragathasundari
"Analysis of Non Markovian queue with Restricted admissibility and optional types of repair".
International Journal of Scientific Research and Management Studies,
vol: 2,
No. 5
Jan. 2015, pp: 244-252,
https://scholar9.com/publication-detail/analysis-of-non-markovian-queue-with-restricted-ad-18227
