@misc{ulber_implementing_and_2011, 
author={Ulber, L., Klimek, S., Steinmann, H.-H., Isselstein, J., Groth, M.},
title={Implementing and evaluating the effectiveness of a payment scheme for environmental services from agricultural land},
year={2011},
howpublished = {journal article},
doi = {https://doi.org/10.1017/S0376892911000385},
abstract = {scheme design and implementation.},
note = {Online available at: \url{https://doi.org/10.1017/S0376892911000385} (DOI). Ulber, L.; Klimek, S.; Steinmann, H.; Isselstein, J.; Groth, M.: Implementing and evaluating the effectiveness of a payment scheme for environmental services from agricultural land. Environmental Conservation. 2011. vol. 38, no. 4, 464-472. DOI: 10.1017/S0376892911000385}}