@inproceedings{c.1950the,
title={The product of$n$real homogeneous linear forms},
author={C. A. Rogers},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203127181063702},
booktitle={Acta Mathematica},
volume={82},
number={1},
pages={185-208},
year={1950},
}