@article{GDZPPN001175203,
title = {New Extremal Properties for Constructing Conformal Mappings.},
journal = {Numerische Mathematik},
volume = {33},
year = {1979},
pages = {423-430},
zbl = {0432.30007},
url = {http://dml.mathdoc.fr/item/GDZPPN001175203}
}
Opfer, G. New Extremal Properties for Constructing Conformal Mappings.. Numerische Mathematik, Tome 33 (1979) pp. 423-430. http://gdmltest.u-ga.fr/item/GDZPPN001175203/