An application of problem and product ontologies for the revision of beach nourishments. - Daniël E. Van de Vlag; Bérengère Vasseur; Alfred Stein; Robert Jeansoulin (Int. J. Geogr. Inf. Sci., 2005)

Understanding Spatiotemporal Patterns: Visual Ordering of Space and Time. - Menno-Jan Kraak; Daniël E. Van de Vlag (Cartogr. Int. J. Geogr. Inf. Geovisualization, 2007)

Incorporating Uncertainty via Hierarchical Classification Using Fuzzy Decision Trees. - Daniël E. Van de Vlag; Alfred Stein (IEEE Trans. Geosci. Remote. Sens., 2007)