%0 Journal Article %A Roman Różański %T Properties of efficient sequential plans for a birth and death process %J Mathematica Applicanda %D 1981 %P 83-93 %V 9 %N 17 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14708/ma.v9i17.1518/ %R 10.14708/ma.v9i17.1518 %G pl %F 10_14708_ma_v9i17_1518