Düker, C. External Organizations;
Keplin, B. External Organizations;
Hüttl, Reinhard F. J. Deutsches GeoForschungsZentrum;
,
Düker, C., Keplin, B., Hüttl, R. F. J. (1999): Development of enchytraeid communities in reclaimed lignite mine spoil. - Newsletter on Enchytraeidae, 6, 77-89.