@article{bwmeta1.element.bwnjournal-article-smv48i1p1bwm,
author = {Calixto Calder\'on},
title = {Differentiation through starlike sets in $R^{m}$
},
journal = {Studia Mathematica},
volume = {48},
year = {1973},
pages = {1-13},
zbl = {0266.26011},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-smv48i1p1bwm}
}
Calderón, Calixto. Differentiation through starlike sets in $R^{m}$
. Studia Mathematica, Tome 48 (1973) pp. 1-13. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-smv48i1p1bwm/