Xia, Shutao; Fu, Fangwei On the average Hamming distance and variance for binary codes. (Chinese. English summary) Zbl 1158.94410 Acta Math. Sci. (Chin. Ed.) 19, No. 4, 368-372 (1999). MSC: 94B15 05C12 05A05 PDFBibTeX XMLCite \textit{S. Xia} and \textit{F. Fu}, Acta Math. Sci. (Chin. Ed.) 19, No. 4, 368--372 (1999; Zbl 1158.94410)
Fu, Fang Wei The maximum value problem for a class of entropy functions. (Chinese) Zbl 0900.94021 Acta Math. Sci. (Chin. Ed.) 15, No. 2, 126-131 (1995). MSC: 94A17 PDFBibTeX XMLCite \textit{F. W. Fu}, Acta Math. Sci. (Chin. Ed.) 15, No. 2, 126--131 (1995; Zbl 0900.94021)