Similarity: Measurement, Ordering and Betweenness. - Walter ten Brinke; David McG. Squire; John Bigelow (KES, 2004)

The Meaning of an Image in Content-Based Image Retrieval. - Walter ten Brinke; David McG. Squire; John Bigelow (PhiSE, 2006)

On similarity and the semantic gap in content-based image retrieval : a metaphysical approach. - Walter ten Brinke (2010)