TY - JOUR AU - Urszula Ledzewicz AU - Mohammad Naghnaeian AU - Heinz Schättler TI - An optimal control approach to cancer treatment under immunological activity JO - Applicationes Mathematicae PY - 2011 SP - 17 EP - 31 VL - 38 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/am38-1-2/ DO - 10.4064/am38-1-2 LA - en ID - 10_4064_am38_1_2 ER -