Wolfgang Espelage, Egon Wanke. Movement minimization for unit distances in conveyor flow shop processing. Math. Meth. of OR, 57(2):173-206, 2003. [doi]
@article{EspelageW03, title = {Movement minimization for unit distances in conveyor flow shop processing}, author = {Wolfgang Espelage and Egon Wanke}, year = {2003}, doi = {10.1007/s001860200249}, url = {http://dx.doi.org/10.1007/s001860200249}, researchr = {https://researchr.org/publication/EspelageW03}, cites = {0}, citedby = {0}, journal = {Math. Meth. of OR}, volume = {57}, number = {2}, pages = {173-206}, }