Media type: E-Article Title: A simple proof of the optimality of a threshold policy in a two-server queueing system Contributor: Koole, Ger Published: Elsevier BV, 1995 Published in: Systems & Control Letters, 26 (1995) 5, Seite 301-303 Language: English DOI: 10.1016/0167-6911(95)00015-1 ISSN: 0167-6911 Origination: Footnote: