@misc{steinberg_biodiversity_and_1993, 
author={Steinberg, C. E. W.,Geller, W.},
title={Biodiversity and interactions within pelagic nutrient cycling and productivity},
year={1993},
howpublished = {book part},
note = {Online available at: \url{} (DOI). Steinberg, C.; Geller, W.: Biodiversity and interactions within pelagic nutrient cycling and productivity. In: Schulze, E.; Mooney, H. (Ed.): Biodiversity und ecosystem function - Ecological studies. Berlin: Springer. 1993. 43-64.}}