Digital elevation model production by stereo-matching spot image-pairs: a comparison of algorithms. - Tim Day; Jan-Peter Muller (Image Vis. Comput., 1989)

Global change video: visualization freeze-frames. - Jan-Peter Müller; Philip Eales; Tim Day; Lee Kellgren; Athula Mandanayake; Andrew Newton; David Rees; Sam Richards; Kevin Tildsley; Gunter Schreier; Heidelotte Craubner; Hilko Hoffmann; et al. (IEEE Computer Graphics and Applications, 1993)