Marshall L. Fisher. Optimal Solution of Scheduling Problems Using Lagrange Multipliers: Part I. Operations Research, 21(5):1114-1127, 1973. [doi]
@article{Fisher73-0,
title = {Optimal Solution of Scheduling Problems Using Lagrange Multipliers: Part I},
author = {Marshall L. Fisher},
year = {1973},
doi = {10.1287/opre.21.5.1114},
url = {http://dx.doi.org/10.1287/opre.21.5.1114},
researchr = {https://researchr.org/publication/Fisher73-0},
cites = {0},
citedby = {0},
journal = {Operations Research},
volume = {21},
number = {5},
pages = {1114-1127},
}