@article{1195525342,
author = {Kusunoki, Yukio},
title = {Some classes of Riemann surfaces characterized by the extremal length},
journal = {Proc. Japan Acad.},
volume = {32},
number = {9},
year = {1956},
pages = { 406-408},
language = {en},
url = {http://dml.mathdoc.fr/item/1195525342}
}
Kusunoki, Yukio. Some classes of Riemann surfaces characterized by the extremal length. Proc. Japan Acad., Tome 32 (1956) no. 9, pp. 406-408. http://gdmltest.u-ga.fr/item/1195525342/