TY - JOUR AU - Wiojciech Wajda TI - Limit theorems for nonhomogeneous semi-Markov processes JO - Applicationes Mathematicae PY - 1991 SP - 1 EP - 14 VL - 21 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/am-21-1-1-14/ DO - 10.4064/am-21-1-1-14 LA - en ID - 10_4064_am_21_1_1_14 ER -