%0 conference lecture %@ %A Bernem, K.-H.van, Grotjahn, M., Knuepling, J., Neugebohrn, L., Ramm, G., Sach, G., Suchrow, S. %D 1988 %J 6th International Wadden Sea Symposium %T Ecological mapping of mud flat areas in the German Wadden Sea %U %X