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H.  Spies and Barron, J. L., ?Evaluating the range flow motion constraint.?, in ICPR, 2002, p. 517--.

H.  Spies, Jähne, B., and Barron, J. L., ?Range flow estimation.?, Computer Vision and Image Understanding, vol. 85, p. 209--231, 2002.

J. L.  Barron and Spies, H., ?The fusion of image and range flow?, Multi-Image Search and Analysis. Springer, p. 174--192, 2001.

H.  Spies, Jähne, B., and Barron, J. L., ?Surface expansion from range data sequences?, in Proceedings of the 23th DAGM Symposium on Pattern Recognition, 2001, p. 163--169.

H.  Spies, Jähne, B., and Barron, J. L., ?Dense range flow from depth and intensity data?, in ICPR, 2000, p. 131--134.

J. L.  Barron, Liptay, A., and Spies, H., ?Optical and range flow to measure 3D plant growth and motion?, in Image Vision Computing New Zealand, 2000, p. 68--77.

J. L.  Barron and Spies, H., ?Quantitative regularized range flow?, in Vision Interface, 2000, p. 203--210.

H.  Spies, Jähne, B., and Barron, J. L., ?Regularised range flow?, in European Conference on Computer Vision (ECCV), 2000, vol. 2, p. 785--799.

H.  Spies, Haußecker, H., Jähne, B., and Barron, J. L., ?Differential range flow estimation?, in Proceedings of the 21th DAGM Symposium on Pattern Recognition, 1999, p. 309--316.