Schmund, D, Schurr, U and Jähne, B (2000).
Optical leaf growth analysis.
Computer Vision and Applications - A Guide for Students and Practitioners. Academic Press. 640-641
Huang, N E, Toba, Y, Shen, Z, Klinke, J, Jähne, B and Banner, M L (2001).
Ocean wave spectra and integral properties.
Wind Stress over the Ocean. Cambridge University Press. 82--123