Avram Zehavi, Alon Itai. Three tree-paths. Journal of Graph Theory, 13(2):175-188, 1989. [doi]
@article{ZehaviI89,
title = {Three tree-paths},
author = {Avram Zehavi and Alon Itai},
year = {1989},
doi = {10.1002/jgt.3190130205},
url = {http://dx.doi.org/10.1002/jgt.3190130205},
researchr = {https://researchr.org/publication/ZehaviI89},
cites = {0},
citedby = {0},
journal = {Journal of Graph Theory},
volume = {13},
number = {2},
pages = {175-188},
}