Wu, Wanqin; Chhen, Jiao; Tan, Hao; Nie, Junyu A mathematical model for land rotation development in China. (Chinese. English summary) Zbl 1449.91069 J. Yunnan Minzu Univ., Nat. Sci. 28, No. 4, 352-357 (2019). MSC: 91B76 91B64 62P20 PDFBibTeX XMLCite \textit{W. Wu} et al., J. Yunnan Minzu Univ., Nat. Sci. 28, No. 4, 352--357 (2019; Zbl 1449.91069) Full Text: DOI
Yang, Guifang; Meng, Wei; Lu, Jiakuan The number of conjugacy classes of non-abelian subgroups in finite groups. (Chinese. English summary) Zbl 1449.20029 J. Yunnan Minzu Univ., Nat. Sci. 28, No. 4, 349-351 (2019). MSC: 20D60 20E45 20D10 PDFBibTeX XMLCite \textit{G. Yang} et al., J. Yunnan Minzu Univ., Nat. Sci. 28, No. 4, 349--351 (2019; Zbl 1449.20029) Full Text: DOI