A neural network model to exploit the econometric properties of Austrian IPOs. - Christian Haefke; Christian Helmenstein (CIFEr, 1995)

The applicability of information criteria for neural network architecture selection. - Christian Haefke; Christian Helmenstein (CIFEr, 1996)

Index forecasting and model selection. - Christian Haefke; Christian Helmenstein (Intell. Syst. Account. Finance Manag., 2002)

Stochastic Ranking and the Volatility "Croissant": A Sensitivity Analysis of Economic Rankings. - Helmut Berrer; Christian Helmenstein; Wolfgang Polasek (GfKl, 2004)