Michel Gendreau, Gilbert Laporte, Frédéric Semet. The Covering Tour Problem. Operations Research, 45(4):568-576, 1997. [doi]
@article{GendreauLS97,
title = {The Covering Tour Problem},
author = {Michel Gendreau and Gilbert Laporte and Frédéric Semet},
year = {1997},
doi = {10.1287/opre.45.4.568},
url = {http://dx.doi.org/10.1287/opre.45.4.568},
researchr = {https://researchr.org/publication/GendreauLS97},
cites = {0},
citedby = {0},
journal = {Operations Research},
volume = {45},
number = {4},
pages = {568-576},
}