
Atkinson, A.C., Koopman, S.J. and Shephard, N. (1997). Detecting shocks: Outliers and breaks in time series Journal of Econometrics, 80(2):387--422.
Frank Windmeijer (1997). An R-squared measure of goodness of fit for some common nonlinear regression models Journal of Econometrics.
Frank Windmeijer (1997). Endogeneity in count data models: An application to demand for health care Journal of Applied Econometrics.