Zur hypolimnischen Belüftung von Gewässern mit der «Ökopumpe Plön» = Aération hypolimnique des eaux par «Eco-Pompe Plön» = Artificial hypolimnic aeration applying the «Ecopump Plön»KRAMBECK, H.-J.Gas- und Wasserfach. Wasser, Abwasser. 1986, Vol 127, Num 3, pp 137-140, issn 0016-3651Article

Instrumentation for the measurement of physiological parameters of phytoplankton photosynthesisRAI, H; KRAMBECK, H. J.Archiv für Hydrobiologie. 1992, Vol 125, Num 3, pp 295-309, issn 0003-9136Article

Fluorescence correction for measurements of enzyme activity in natural waters using methylumbelliferyl-substratesCHROST, R. J; KRAMBECK, H. J.Archiv für Hydrobiologie. 1986, Vol 106, Num 1, pp 79-90, issn 0003-9136Article

Lipid production in natural phytoplankton communities in a small freshwater Baltic Lake, Lake Schöhsee, GermanyRAI, H; ARTS, M. T; WAINMAN, B. C et al.Freshwater biology (Print). 1997, Vol 38, Num 3, pp 581-590, issn 0046-5070Conference Paper