Yongquan Li, Andrew Lim, Wee-Chong Oon, Hu Qin, Dejian Tu. The tree representation for the pickup and delivery traveling salesman problem with LIFO loading. European Journal of Operational Research, 212(3):482-496, 2011. [doi]
@article{LiLOQT11,
title = {The tree representation for the pickup and delivery traveling salesman problem with LIFO loading},
author = {Yongquan Li and Andrew Lim and Wee-Chong Oon and Hu Qin and Dejian Tu},
year = {2011},
doi = {10.1016/j.ejor.2011.02.008},
url = {http://dx.doi.org/10.1016/j.ejor.2011.02.008},
researchr = {https://researchr.org/publication/LiLOQT11},
cites = {0},
citedby = {0},
journal = {European Journal of Operational Research},
volume = {212},
number = {3},
pages = {482-496},
}