A double continuous approach to visualization and analysis of categorical maps. - Tomislav Hengl; Dennis J. J. Walvoort; Allan Brown; David G. Rossiter (Int. J. Geogr. Inf. Sci., 2004)

The variance quadtree algorithm: Use for spatial sampling design. - Budiman Minasny; Alex B. McBratney; Dennis J. J. Walvoort (Comput. Geosci., 2007)

An R package for spatial coverage sampling and random sampling from compact geographical strata by k-means. - Dennis J. J. Walvoort; D. J. Brus; J. J. de Gruijter (Comput. Geosci., 2010)

Use of Geo-Information in Environmental Policy: Limitations, Advantages and Challenges. - Wies Vullings; Jandirk Bulens; Dennis J. J. Walvoort (Int. J. Agric. Environ. Inf. Syst., 2014)

Spatial Uncertainty Propagation Analysis with the spup R Package. - Kasia Sawicka; Gerard B. M. Heuvelink; Dennis J. J. Walvoort (R J., 2018)