@misc{lemmen_critical_transitions_2015, 
author={Lemmen, C., Wirtz, K.W.},
title={Critical Transitions in Socio-econo-ecological Systems},
year={2015},
howpublished = {conference lecture (invited): Berlin (D);},
note = {Lemmen, C.; Wirtz, K.: Critical Transitions in Socio-econo-ecological Systems. DPG-Fruehjahrstagung der Sektion Kondensierte Materie 2015. Berlin (D), 2015.}}