TY - JOUR AU - J. Bartoszewicz AU - T. Rolski TI - Queueing systems with a reserve service channel JO - Applicationes Mathematicae PY - 1969 SP - 439 EP - 449 VL - 11 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/am-11-4-439-449/ DO - 10.4064/am-11-4-439-449 LA - en ID - 10_4064_am_11_4_439_449 ER -