On the existence of a PBD(30, { 4, 5, 7, 8*}) Grüttmüller, Martin , 1970- (VerfasserIn) Streso, Katy (VerfasserIn) Text Text 2003 2003 eng electronic resourceremoteComputermedienOnline-Ressource1 Online-Ressource (8 Seiten) In the present paper we will prove by an exhaustive search method that a pairwise balanced design on 30 points with blocks of size 4, 5, 7 and exactly one block of size 8 does not exist.<eng> Open Access Urheberrechtsschutz 1.0 Martin Grüttmüller and Katy Streso 510 https://purl.uni-rostock.de/rosdok/id00005918 On the existence of a PBD (30, {4,5,7,8*})--(DE-627)361528604 urn:nbn:de:gbv:28-rosdok_id00005918-8 doi: 10.18453/rosdok_id00005918 oclc: 1622697900 ppn: (DE-627)198791595X