Tomi Kärki, Tero Harju, Vesa Halava. Interaction Properties of Relational Periods. Discrete Mathematics & Theoretical Computer Science, 10(1), 2008. [doi]
@article{KarkiHH08,
title = {Interaction Properties of Relational Periods},
author = {Tomi Kärki and Tero Harju and Vesa Halava},
year = {2008},
url = {http://www.dmtcs.org/dmtcs-ojs/index.php/dmtcs/article/view/630/2192},
researchr = {https://researchr.org/publication/KarkiHH08},
cites = {0},
citedby = {0},
journal = {Discrete Mathematics & Theoretical Computer Science},
volume = {10},
number = {1},
}