%0 conference lecture %@ %A Ducklow, H. W., Hoppe, H.-G., Karrasch, B., Stirling, M., Mehrens, M., Quinby, H. %D 1990 %J 4th EMM (European Marine Microbiology) Symposium %T Bacterioplankton response to the spring bloom at 47°N, 20°W %U %X