Cost analysis of a queue system with impatient customers http://localhost:8080/xmlui/handle/123456789/5107 Thu, 18 Jun 2026 17:32:18 GMT 2026-06-18T17:32:18Z Cost analysis of a queue system with impatient customers http://localhost:8080/xmlui/handle/123456789/5108 Cost analysis of a queue system with impatient customers T.P. Singh & Arti Tyagi Mon, 01 Jul 2013 00:00:00 GMT http://localhost:8080/xmlui/handle/123456789/5108 2013-07-01T00:00:00Z