@article{bwmeta1.element.bwnjournal-article-cmv10i1p143bwm,
author = {J. Krzy\.z},
title = {On the derivative of close-to-convex functions},
journal = {Colloquium Mathematicae},
volume = {10},
year = {1963},
pages = {143-146},
zbl = {0113.28902},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-cmv10i1p143bwm}
}
Krzyż, J. On the derivative of close-to-convex functions. Colloquium Mathematicae, Tome 10 (1963) pp. 143-146. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-cmv10i1p143bwm/