1. H. Allende(1988 ) Robuste Schatzung von ARMA-Prozessen . Ph.D. Thesis , University of Dortmund.
2. H. Allende, and S. Heiler(1986 ) Robust estimation in autoregressive time series. Forschungsbericht 86/1, Abteilung Statistik, University of Dortmund.
3. Qualitative Robustness for Stochastic Processes