TY - JOUR AU - S. Trybuła TI - Some problems of prediction of the difference of random variables JO - Applicationes Mathematicae PY - 1991 SP - 153 EP - 159 VL - 21 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/am-21-2-153-159/ DO - 10.4064/am-21-2-153-159 LA - en ID - 10_4064_am_21_2_153_159 ER -