@article{Reith_Frisch_Winkler_2017, title={Revision of the Working Time Classification to Optimize Work Processes in Modern Agriculture }, volume={58}, url={https://www.cetjournal.it/index.php/cet/article/view/CET1758021}, DOI={10.3303/CET1758021}, journal={Chemical Engineering Transactions}, author={Reith, S. and Frisch, J. and Winkler, B.}, year={2017}, month={Jun.}, pages={121-126}