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 APA Style APA-ALL Style AAA 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). In Stichting Mathematisch Centrum. Zuivere Wiskunde (ZW 62/75). Stichting Mathematisch Centrum.

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