@inproceedings{burton1939regular,
title={Regular and semi-regular positive ternary quadratic forms},
author={Burton W. Jones, and Gordon Pall},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203113751381599},
booktitle={Acta Mathematica},
volume={70},
number={1},
pages={165-191},
year={1939},
}
Burton W. Jones, and Gordon Pall. Regular and semi-regular positive ternary quadratic forms. 1939. Vol. 70. In Acta Mathematica. pp.165-191. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203113751381599.