@book{Urff+2020,
url = {https://doi.org/10.3790/9783428415687},
title = {Produktionsplanung in der Landwirtschaft},
title = {unter besonderer Berücksichtigung der Methode des Linear Programming},
author = {Winfried von Urff},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428415687},
isbn = {9783428415687},
year = {1964},
lastchecked = {2020}
}