R. Stephens. IFAC Proceedings Volumes, 37 (10):
41 - 51(2004)IFAC Conference on Computer Applications in Marine Systems - CAMS 2004, Ancona, Italy, 7-9 July 2004.
T. Hielscher, M. Spiliopoulou, H. Völzke, and J. Kühn. Proc. of the 13th Int. Symposium on Intelligent Data Analysis (IDA'14), Leuven, Belgium, Springer, (2014)accepted 08/2014, to appear.