@inproceedings{ih-ching1971pseudo-lattices:,
title={Pseudo-lattices: Theory and applications},
author={Ih-Ching Hsu, and H. L. Bentley},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203445355997138},
booktitle={Arkiv for Matematik},
volume={8},
number={3},
pages={259-270},
year={1971},
}
Ih-Ching Hsu, and H. L. Bentley. Pseudo-lattices: Theory and applications. 1971. Vol. 8. In Arkiv for Matematik. pp.259-270. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203445355997138.