@article{GDZPPN002425270,
title = {Curvature and Functions with Bounded Boundary Rotation.},
journal = {Mathematische Zeitschrift},
volume = {177},
year = {1981},
pages = {395-400},
zbl = {0442.30010},
url = {http://dml.mathdoc.fr/item/GDZPPN002425270}
}
Boutellier, Roman. Curvature and Functions with Bounded Boundary Rotation.. Mathematische Zeitschrift, Tome 177 (1981) pp. 395-400. http://gdmltest.u-ga.fr/item/GDZPPN002425270/