Journal of Combinatorial Theory, Series AVolume 53, Issue 1, January 1990, Pages 68-80Two sporadic geometries related to the Hoffman-Singleton graphAuthor links open overlay panelStefan HeissShow moreShareCitehttps://doi.org/10.1016/0097-3165(90)90020-WGet rights and contentUnder an Elsevier user licenseopen archivePrevious article in issueNext article in issueRecommended articlesCited by (0)Copyright © 1990 Published by Elsevier Inc.