@article{GDZPPN002372916,
title = {Extended Minimum-Number Theorems of Cyclic and Sextactic Points on a Plane Convex Oval},
journal = {Mathematische Zeitschrift},
volume = {33},
year = {1931},
pages = {648-662},
zbl = {0002.04904},
url = {http://dml.mathdoc.fr/item/GDZPPN002372916}
}
Mukhopadhaya, S.,. Extended Minimum-Number Theorems of Cyclic and Sextactic Points on a Plane Convex Oval. Mathematische Zeitschrift, Tome 33 (1931) pp. 648-662. http://gdmltest.u-ga.fr/item/GDZPPN002372916/