Wen, Xue; Tian, Yuan; Wu, Yang; Wan, Jiahuan; Wang, Xingguang A model of direction calculation based on point group dividing. (Chinese. English summary) Zbl 1289.86009 Acta Sci. Nat. Univ. Pekin. 49, No. 3, 485-490 (2013). MSC: 86A30 68P20 PDFBibTeX XMLCite \textit{X. Wen} et al., Acta Sci. Nat. Univ. Pekin. 49, No. 3, 485--490 (2013; Zbl 1289.86009)
Zhang, Kai; Guan, Jie; Zhang, Zhongya; Luo, Lei Key recovery attack on hybrid cipher SCB algorithm. (Chinese. English summary) Zbl 1289.94061 Acta Sci. Nat. Univ. Pekin. 49, No. 3, 397-403 (2013). MSC: 94A60 68P25 PDFBibTeX XMLCite \textit{K. Zhang} et al., Acta Sci. Nat. Univ. Pekin. 49, No. 3, 397--403 (2013; Zbl 1289.94061)