@article{GDZPPN002335077,
title = {The inner Carath\'edory distance for the annulus.},
journal = {Mathematische Annalen},
volume = {291},
year = {1991},
pages = {335-340},
zbl = {0719.30036},
url = {http://dml.mathdoc.fr/item/GDZPPN002335077}
}
Pflug, Peter; Jarnicki, Marek. The inner Carathédory distance for the annulus.. Mathematische Annalen, Tome 291 (1991) pp. 335-340. http://gdmltest.u-ga.fr/item/GDZPPN002335077/