Volker Lauff, Frank Werner. On the complexity and some properties of multi-stage scheduling problems with earliness and tardiness penalties. Computers & OR, 31(3):317-345, 2004. [doi]
@article{LauffW04,
title = {On the complexity and some properties of multi-stage scheduling problems with earliness and tardiness penalties},
author = {Volker Lauff and Frank Werner},
year = {2004},
doi = {10.1016/S0305-0548(02)00194-6},
url = {http://dx.doi.org/10.1016/S0305-0548(02)00194-6},
researchr = {https://researchr.org/publication/LauffW04},
cites = {0},
citedby = {0},
journal = {Computers & OR},
volume = {31},
number = {3},
pages = {317-345},
}