@article{GDZPPN002309300,
title = {Intersections of Circles and Curves of Constant Width.},
journal = {Mathematische Annalen},
volume = {212},
year = {1974},
pages = {49-58},
zbl = {0263.52001},
url = {http://dml.mathdoc.fr/item/GDZPPN002309300}
}
Goodey, P.R. Intersections of Circles and Curves of Constant Width.. Mathematische Annalen, Tome 212 (1974) pp. 49-58. http://gdmltest.u-ga.fr/item/GDZPPN002309300/