@article{05022765,
title = {On the perimeter of the intersection of congruent disks.},
journal = {Beitr\"age zur Algebra und Geometrie},
volume = {47},
year = {2006},
pages = {53-62},
zbl = {1094.52010},
language = {en},
url = {http://dml.mathdoc.fr/item/05022765}
}
Bezdek, Károly; Connelly, Robert; Csikós, Balázs. On the perimeter of the intersection of congruent disks.. Beiträge zur Algebra und Geometrie, Tome 47 (2006) pp. 53-62. http://gdmltest.u-ga.fr/item/05022765/