Optimizing Complex Problems by Nature's Algorithms: Simulated Annealing and Evolution Strategy - A Comparative Study. - Claas de Groot; Diethelm Würtz; Karl-Heinz Hoffmann 002 (PPSN, 1990)

Analysis of univariate time series with connectionist nets: A case study of two classical examples. - Claas de Groot; Diethelm Würtz (Neurocomputing, 1991)

Forecasting Time Series with Connectionist Nets: Applications in Statistics, Signal Processing and Economics. - Claas de Groot; Diethelm Würtz (IEA/AIE, 1992)

'Plain backpropagation' and advanced optimization algorithms: A comparative study. - Claas de Groot; Diethelm Würtz (Neurocomputing, 1994)