Heidemarie Bräsel, Martin Harborth, Thomas Tautenhahn, Per Willenius. On the hardness of the classical job shop problem. Annals OR, 92:265-279, 1999. [doi]
@article{BraselHTW99a,
title = {On the hardness of the classical job shop problem},
author = {Heidemarie Bräsel and Martin Harborth and Thomas Tautenhahn and Per Willenius},
year = {1999},
doi = {10.1023/A%3A1018990932547},
url = {https://doi.org/10.1023/A%3A1018990932547},
researchr = {https://researchr.org/publication/BraselHTW99a},
cites = {0},
citedby = {0},
journal = {Annals OR},
volume = {92},
pages = {265-279},
}