@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/