@article{00928003,
title = {Two problems concerning the area-perimeter ratio of lattice-point-free regions in the plane.},
journal = {Beitr\"age zur Algebra und Geometrie},
volume = {37},
year = {1996},
pages = {1-8},
zbl = {0873.52017},
language = {en},
url = {http://dml.mathdoc.fr/item/00928003}
}
Schnell, Uwe; Segura Gomis, Salvador. Two problems concerning the area-perimeter ratio of lattice-point-free regions in the plane.. Beiträge zur Algebra und Geometrie, Tome 37 (1996) pp. 1-8. http://gdmltest.u-ga.fr/item/00928003/