Stefan Porschen. On Covering Z-Grid Points by Rectangles. Electronic Notes in Discrete Mathematics, 8:80-83, 2001. [doi]
@article{Porschen01,
title = {On Covering Z-Grid Points by Rectangles},
author = {Stefan Porschen},
year = {2001},
doi = {10.1016/S1571-0653(05)80086-1},
url = {http://dx.doi.org/10.1016/S1571-0653(05)80086-1},
researchr = {https://researchr.org/publication/Porschen01},
cites = {0},
citedby = {0},
journal = {Electronic Notes in Discrete Mathematics},
volume = {8},
pages = {80-83},
}