de Bruijn, N. G. A combinatorial problem. (Russian. English original) Zbl 0196.02803 Kibern. Sb., Nov. Ser. 6, 33-40 (1969); translation from Nederl. Akad. Wet., Proc., Ser. A 49, 758-764 (1946). See the review of the original in Zbl 0060.02701. Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 13 Documents Keywords:combinatorics Citations:Zbl 0060.02701 PDF BibTeX XML Cite \textit{N. G. de Bruijn}, Kibern. Sb., Nov. Ser. 6, 33--40 (1946; Zbl 0196.02803); translation from Nederl. Akad. Wet., Proc., Ser. A 49, 758--764 (1946) OpenURL