Adam N. Letchford, Richard W. Eglese, Jens Lysgaard. Multistars, partial multistars and the capacitated vehicle routing problem. Math. Program., 94(1):21-40, 2002. [doi]
@article{LetchfordEL02,
title = {Multistars, partial multistars and the capacitated vehicle routing problem},
author = {Adam N. Letchford and Richard W. Eglese and Jens Lysgaard},
year = {2002},
doi = {10.1007/s10107-002-0336-8},
url = {http://dx.doi.org/10.1007/s10107-002-0336-8},
tags = {routing},
researchr = {https://researchr.org/publication/LetchfordEL02},
cites = {0},
citedby = {0},
journal = {Math. Program.},
volume = {94},
number = {1},
pages = {21-40},
}