Journal of Combinatorial Theory, Series AVolume 33, Issue 1, July 1982, Pages 76-81On monochrome lines and hyperplanesAuthor links open overlay panelPeter Borwein ∗Show moreShareCitehttps://doi.org/10.1016/0097-3165(82)90080-2Get rights and contentUnder an Elsevier user licenseopen archivePrevious article in issueNext article in issueRecommended articlesCited by (0)∗Research Supported by N.S.E.R.C.Copyright © 1982 Published by Elsevier Inc.