TY - JOUR AU - P. I. Katsylo AU - D. A. Timashev TI - Natural differential operations on manifolds: an algebraic JO - Sbornik. Mathematics PY - 2008 SP - 1481 EP - 1503 VL - 199 IS - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_2008_199_10_a3/ LA - en ID - SM_2008_199_10_a3 ER -