The busy period of a repairman attending a ( n + 1 ) unit parallel system E. J. Vanderperre — 1973 RAIRO - Operations Research - Recherche Opérationnelle
On the busy period for the M|G|1 queue with-finite waiting room E. J. Vanderperre — 1974 RAIRO - Operations Research - Recherche Opérationnelle
Stochastic Behaviour of a Robot-Safety Device System E. J. Vanderperre; S. Vannakrairojn; S.S. Makhanov — 1999 The Yugoslav Journal of Operations Research