Alexey Baburin, Federico Della Croce, Edward Gimadi, Y. V. Glazkov, Vangelis Th. Paschos. Approximation algorithms for the 2-peripatetic salesman problem with edge weights 1 and 2. Discrete Applied Mathematics, 157(9):1988-1992, 2009. [doi]
@article{BaburinCGGP09,
title = {Approximation algorithms for the 2-peripatetic salesman problem with edge weights 1 and 2},
author = {Alexey Baburin and Federico Della Croce and Edward Gimadi and Y. V. Glazkov and Vangelis Th. Paschos},
year = {2009},
doi = {10.1016/j.dam.2008.06.025},
url = {http://dx.doi.org/10.1016/j.dam.2008.06.025},
researchr = {https://researchr.org/publication/BaburinCGGP09},
cites = {0},
citedby = {0},
journal = {Discrete Applied Mathematics},
volume = {157},
number = {9},
pages = {1988-1992},
}