@article{yan_bai_fang_luo_2018, title={A proximal quadratic surface support vector machine for semi-supervised binary classification}, volume={22}, DOI={10.1007/s00500-017-2751-z}, number={20}, journal={SOFT COMPUTING}, author={Yan, Xin and Bai, Yanqin and Fang, Shu-Cherng and Luo, Jian}, year={2018}, month={Oct}, pages={6905–6919}}