TY - JOUR AU - Braglia, M. TI - M/M/1 queuing model with ordinary maintenance and breakdowns JO - RAIRO - Operations Research - Recherche Opérationnelle PY - 1993 SP - 1 EP - 21 VL - 27 IS - 1 PB - EDP-Sciences UR - http://archive.numdam.org/item/RO_1993__27_1_1_0/ LA - en ID - RO_1993__27_1_1_0 ER -