Xie, Litong; Liu, Jiazhuang On smooth numerical model. (English) Zbl 0809.65003 Acta Math. Sci. 14, No. 1, 43-49 (1994). Reviewer: N.Vulchanov (Gabrovo) MSC: 65D10 PDF BibTeX XML Cite \textit{L. Xie} and \textit{J. Liu}, Acta Math. Sci. 14, No. 1, 43--49 (1994; Zbl 0809.65003)
Xie, Litong; Liu, Jiazhuang Perfect rectangles. (Chinese) Zbl 0561.05021 Adv. Math., Beijing 13, No. 4, 290-293 (1984). Reviewer: Z.Ma MSC: 05B45 94C15 05C99 PDF BibTeX XML Cite \textit{L. Xie} and \textit{J. Liu}, Adv. Math., Beijing 13, No. 4, 290--293 (1984; Zbl 0561.05021)
Xie, Litong; Zheng, Handing; Liu, Jiazhuang On the valence sequence of an ordered tree. (English) Zbl 0584.05026 Kexue Tongbao, Foreign Lang. Ed. 27, 807-810 (1982). Reviewer: A.Tucker MSC: 05C05 05C30 PDF BibTeX XML Cite \textit{L. Xie} et al., Kexue Tongbao, Sci. Bull. 27, 807--810 (1982; Zbl 0584.05026)