Cite as:
@article{Beasley_1981,
doi = {10.1016/0305-0483(81)90055-4},
url = {https://doi.org/10.1016%2F0305-0483%2881%2990055-4},
year = 1981,
month = {jan},
publisher = {Elsevier {BV}},
volume = {9},
number = {6},
pages = {658--659},
author = {JE Beasley},
title = {Adapting the savings algorithm for varying inter-customer travel times},
journal = {Omega}
}