TY - JOUR AU - Roman Różański TI - Properties of efficient sequential plans for a birth and death process JO - Mathematica Applicanda PY - 1981 SP - 83 EP - 93 VL - 9 IS - 17 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14708/ma.v9i17.1518/ DO - 10.14708/ma.v9i17.1518 LA - pl ID - 10_14708_ma_v9i17_1518 ER -