@article{01494256,
title = {Three functionals of a quasicircle. (Drei Funktionale eines Quasikreises.)},
journal = {Annales Academiae Scientiarum Fennicae. Mathematica},
volume = {25},
year = {2000},
pages = {413-415},
zbl = {0968.30010},
language = {en},
url = {http://dml.mathdoc.fr/item/01494256}
}
Kühnau, Reiner. Three functionals of a quasicircle. (Drei Funktionale eines Quasikreises.). Annales Academiae Scientiarum Fennicae. Mathematica, Tome 25 (2000) pp. 413-415. http://gdmltest.u-ga.fr/item/01494256/