Blackwell, D.; Dubins, L. An elementary proof of an identity of Gould’s. (English) Zbl 0196.29001 Bol. Soc. Mat. Mex., II. Ser. 11, 108-110 (1966). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 3 Documents Keywords:combinatorics PDFBibTeX XMLCite \textit{D. Blackwell} and \textit{L. Dubins}, Bol. Soc. Mat. Mex., II. Ser. 11, 108--110 (1966; Zbl 0196.29001)