@misc{lemmen_gradient_adaptive_2008, 
author={Lemmen, C.},
title={Gradient adaptive dynamics: Aggregate modeling from Daisyworld to an ESM anthroposphere component},
year={2008},
howpublished = {conference lecture: Helgoland (D);},
note = {Lemmen, C.: Gradient adaptive dynamics: Aggregate modeling from Daisyworld to an ESM anthroposphere component. GKSS-Oekosystem-Modellierungs-Seminar. Helgoland (D), 2008.}}