Arye Barkan, Haim Kaplan. Partial alphabetic trees. J. Algorithms, 58(2):81-103, 2006. [doi]
@article{BarkanK06,
title = {Partial alphabetic trees},
author = {Arye Barkan and Haim Kaplan},
year = {2006},
doi = {10.1016/j.jalgor.2005.06.001},
url = {http://dx.doi.org/10.1016/j.jalgor.2005.06.001},
researchr = {https://researchr.org/publication/BarkanK06},
cites = {0},
citedby = {0},
journal = {J. Algorithms},
volume = {58},
number = {2},
pages = {81-103},
}