Hermann Gruber, Markus Holzer. Language operations with regular expressions of polynomial size. Theoretical Computer Science, 410(35):3281-3289, 2009. [doi]
@article{GruberH09-0,
title = {Language operations with regular expressions of polynomial size},
author = {Hermann Gruber and Markus Holzer},
year = {2009},
doi = {10.1016/j.tcs.2009.04.009},
url = {http://dx.doi.org/10.1016/j.tcs.2009.04.009},
researchr = {https://researchr.org/publication/GruberH09-0},
cites = {0},
citedby = {0},
journal = {Theoretical Computer Science},
volume = {410},
number = {35},
pages = {3281-3289},
}