%0 conference lecture %@ %A Maresca, S.,Braca, P.,Horstmann, J.,Grasso, R. %D 2014 %J 2014 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2014 %N %P %T A Network of HF Surface wave Radars for Maritime Surveillance: Preliminary Results in the German Bight %U %X