Let ξ and θ be smooth differential forms with compact support, of dimensions 2n and 2n-1, respectively, defined on an open set W in Cn, and let φ be any holomorphic function defined on W. We prove in this paper that the limits [fórmula] exist, where |φ| denotes the absolute value of φ, and relate them to the topology of the variety φ=0 and its complement in W.