TY - JOUR AU - Walcher, Sebastian AU - Zanders, Christian TI - Strong monotonicity for analytic ordinary differential equations JO - Electronic journal of differential equations PY - 2009 VL - 2009 UR - http://geodesic.mathdoc.fr/item/EJDE_2009__2009__a48/ LA - en ID - EJDE_2009__2009__a48 ER -