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A Comparison of the EM and Newton-Raphson Algorithms.
Paul A. Ruud., (1989)
Specifying and Testing Econometric Models for Rank-ordered Data with an Application to the Demand for Mobile and Portable Telephones.
Hausman, Jerry A., (1986)
Classical Estimation Methods for LDV Models Using Simulation.
Hajivassiliou, Vassilis A., (1993)