TY - JOUR AU - Adam Bobrowski AU - Radosław Bogucki TI - Semigroups generated by convex combinations of several Feller generators in models of mathematical biology JO - Studia Mathematica PY - 2008 SP - 287 EP - 300 VL - 189 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm189-3-6/ DO - 10.4064/sm189-3-6 LA - en ID - 10_4064_sm189_3_6 ER -