@article{1102708248,
author = {Breen, Marilyn},
title = {Clear visibility and unions of two starshaped sets in the plane.},
journal = {Pacific J. Math.},
volume = {115},
number = {2},
year = {1984},
pages = { 267-275},
language = {en},
url = {http://dml.mathdoc.fr/item/1102708248}
}
Breen, Marilyn. Clear visibility and unions of two starshaped sets in the plane.. Pacific J. Math., Tome 115 (1984) no. 2, pp. 267-275. http://gdmltest.u-ga.fr/item/1102708248/