Paul Wollan. Extremal Functions for Shortening Sets of Paths. Combinatorics, Probability & Computing, 15(6):927-932, 2006. [doi]
@article{Wollan06,
title = {Extremal Functions for Shortening Sets of Paths},
author = {Paul Wollan},
year = {2006},
doi = {10.1017/S0963548306007784},
url = {http://dx.doi.org/10.1017/S0963548306007784},
researchr = {https://researchr.org/publication/Wollan06},
cites = {0},
citedby = {0},
journal = {Combinatorics, Probability & Computing},
volume = {15},
number = {6},
pages = {927-932},
}