@misc{lemmen_gradient_adaptive_2008, 
author={Lemmen, C.},
title={Gradient Adaptive Dynamics from Daisyworld to the Neolithic Transition},
year={2008},
howpublished = {conference lecture: Hamburg (D);},
note = {Lemmen, C.: Gradient Adaptive Dynamics from Daisyworld to the Neolithic Transition. German Advances in Marine Ecosystem Modeling. Hamburg (D), 2008.}}