@Book{198791595X,
author="Gr{\"u}ttm{\"u}ller, Martin
and Streso, Katy",
title="On the existence of a PBD(30, {\{} 4, 5, 7, 8*{\}})",
series="Preprints aus dem Institut f{\"u}r Mathematik",
year="2003",
address="Germany; Rostock",
abstract="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>",
note="Martin Gr{\"u}ttm{\"u}ller and Katy Streso",
doi="10.18453/rosdok_id00005918",
url="https://purl.uni-rostock.de/rosdok/id00005918",
url="https://doi.org/10.18453/rosdok_id00005918",
language="English"
}