Fidalgo, A., Mellenberg, G. J., & Muñiz, J. (2012). IDENTIFICATION OF NONUNIFORM DIFFERENTIAL ITEM FUNCTIONING USING A VARIATION OF THE MANTEL-HAENSZEL PROCEDURE AND THE ITERATIVE LOGIT METHOD. R.E.M.A. Revista electrónica De metodología Aplicada, 5(1), 13–24. https://doi.org/10.17811/rema.5.1.2000.13-24