Kurt Spielberg. On the fixed charge transportation problem. In Eric A. Weiss, Herbert S. Bright, editors, Proceedings of the 19th ACM national conference, ACM 1964, USA. pages 11, ACM, 1964. [doi]
@inproceedings{Spielberg64,
title = {On the fixed charge transportation problem},
author = {Kurt Spielberg},
year = {1964},
doi = {10.1145/800257.808885},
url = {https://doi.org/10.1145/800257.808885},
researchr = {https://researchr.org/publication/Spielberg64},
cites = {0},
citedby = {0},
pages = {11},
booktitle = {Proceedings of the 19th ACM national conference, ACM 1964, USA},
editor = {Eric A. Weiss and Herbert S. Bright},
publisher = {ACM},
isbn = {978-1-4503-7918-2},
}