Michel X. Goemans, David P. Williamson. Two-Dimensional Gantt Charts and a Scheduling Algorithm of Lawler. SIAM J. Discrete Math., 13(3):281-294, 2000. [doi]
@article{GoemansW00,
title = {Two-Dimensional Gantt Charts and a Scheduling Algorithm of Lawler},
author = {Michel X. Goemans and David P. Williamson},
year = {2000},
url = {http://epubs.siam.org/sam-bin/dbq/article/33025},
researchr = {https://researchr.org/publication/GoemansW00},
cites = {0},
citedby = {0},
journal = {SIAM J. Discrete Math.},
volume = {13},
number = {3},
pages = {281-294},
}