A(17,6,4) = 20 or the nonexistence of the scarce design sd(4,1 ;17,21)

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Publisher	Stichting Mathematisch Centrum
Series	Stichting Mathematisch Centrum. Zuivere Wiskunde
Citation APA Style AAA Style APA Style Cell Style Chicago Style Harvard Style IEEE Style MLA Style Nature Style Vancouver Style American-Institute-of-Physics Style Council-of-Science-Editors Style BibTex Format Endnote Format RIS Format CSL Format DOIs only Format	Brouwer, A. (1975). A(17,6,4) = 20 or the nonexistence of the scarce design sd(4,1 ;17,21). Stichting Mathematisch Centrum. Zuivere Wiskunde. Stichting Mathematisch Centrum.

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