@article{00469034,
title = {Degeneration of quasicircles: Inner and outer radii of Teichm\"uller spaces.},
journal = {Annales Academiae Scientiarum Fennicae. Mathematica},
volume = {18},
year = {1993},
pages = {191-202},
zbl = {0789.30009},
language = {en},
url = {http://dml.mathdoc.fr/item/00469034}
}
Velling, John A. Degeneration of quasicircles: Inner and outer radii of Teichmüller spaces.. Annales Academiae Scientiarum Fennicae. Mathematica, Tome 18 (1993) pp. 191-202. http://gdmltest.u-ga.fr/item/00469034/