Relative performance of correlation-based and feature-based classifiers of aircraft using radar range profiles. - Christoph Nieuwoudt; Elizabeth C. Botha (ICPR, 1998)

Automatic face recognition in a heterogeneous population. - Darryl W. Purnell; Christoph Nieuwoudt; Elizabeth C. Botha (Pattern Recognit. Lett., 1998)

Adaptation of acoustic models for multilingual recognition. - Christoph Nieuwoudt; Elizabeth C. Botha (EUROSPEECH, 1999)

Cross-language use of acoustic information for automatic speech recognition. - Christoph Nieuwoudt; Elizabeth C. Botha (Speech Commun., 2002)