@misc{steffen_chaotic_behaviour_1995, 
author={Steffen, E.,Malchow, H.},
title={Chaotic behaviour of a model plankton community in a heterogeneous environment},
year={1995},
howpublished = {conference lecture: Berlin (D); September 24-28, 1995},
note = {Online available at: \url{} (DOI). Steffen, E.; Malchow, H.: Chaotic behaviour of a model plankton community in a heterogeneous environment. Selforganization of Complex Structures. Berlin (D), 1995.}}