B.  Jähne, Klinke, J., and Waas, S., ?Imaging of short ocean wind waves: a critical theoretical review?, J. Opt. Soc. Am. A, vol. 11, p. 2197--2209, 1994.

B.  Jähne, Klinke, J., Geißler, P., and Hering, F., ?Image sequence analysis of ocean wind waves?, in Imaging in Transport Processes, 1993, p. 257--268.