Kölbel-Boelke, J Microbial communities in the saturated groundwater environment II: Diversity of bacterial communities in a Pleistocene sand aquifer and their in vitro activities. [electronic resource] - Microbial ecology Jul 1988 - 31-48 p. digital Publication Type: Journal Article ISSN: 0095-3628 Standard No.: 10.1007/BF02097403 doi