Zhang, Junfu; Song, Xue - Forschungsinstitut zur Zukunft der Arbeit <Bonn> - 2007
and
Negative Binomial Regression Model,” working paper No. EC-94-10, Department of Economics,
Stern School of Business …-95-6, Department of Economics, Stern School of Business, New York University.
Greene, William H., 2001, “FIML Estimation … and business. IZA is an independent nonprofit
company supported by Deutsche Post World Net. The center is associated with …