Ilya B. Gertsbakh, Helman I. Stern. Minimal Resources for Fixed and Variable Job Schedules. Operations Research, 26(1):68-85, 1978. [doi]
@article{GertsbakhS78,
title = {Minimal Resources for Fixed and Variable Job Schedules},
author = {Ilya B. Gertsbakh and Helman I. Stern},
year = {1978},
doi = {10.1287/opre.26.1.68},
url = {http://dx.doi.org/10.1287/opre.26.1.68},
researchr = {https://researchr.org/publication/GertsbakhS78},
cites = {0},
citedby = {0},
journal = {Operations Research},
volume = {26},
number = {1},
pages = {68-85},
}