@inproceedings{e.1952the,
title={The minimum of a bilinear form},
author={E. S. Barnes},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203136222101767},
booktitle={Acta Mathematica},
volume={88},
number={1},
pages={253-277},
year={1952},
}