Valérie Berthé, Laurent Vuillon. Palindromes and Two-Dimensional Sturmian Sequences. Journal of Automata, Languages and Combinatorics, 6(2):121-138, 2001.
@article{BertheV01,
title = {Palindromes and Two-Dimensional Sturmian Sequences},
author = {Valérie Berthé and Laurent Vuillon},
year = {2001},
researchr = {https://researchr.org/publication/BertheV01},
cites = {0},
citedby = {0},
journal = {Journal of Automata, Languages and Combinatorics},
volume = {6},
number = {2},
pages = {121-138},
}