@misc{geller_the_energy_1989, 
author={Geller, W.},
title={The energy budget of two sympatric Daphnia species in Lake Constance: productivity and energy residence times},
year={1989},
howpublished = {journal article},
note = {Geller, W.: The energy budget of two sympatric Daphnia species in Lake Constance: productivity and energy residence times. Oecologia. 1989. vol. 78, 242-250.}}