@article{GDZPPN002081407,
title = {Covering the sphere with 11 equal circles.},
journal = {Elemente der Mathematik},
volume = {41},
year = {1986},
pages = {35-38},
zbl = {0598.52010},
url = {http://dml.mathdoc.fr/item/GDZPPN002081407}
}
Tarnai, T.; Gáspár, Zs. Covering the sphere with 11 equal circles.. Elemente der Mathematik, Tome 41 (1986) pp. 35-38. http://gdmltest.u-ga.fr/item/GDZPPN002081407/