@article{a3b2d18ff1174a42bc000687e0d46fa7,
title = "Classification of resolvable balanced incomplete block designs -- The unitals on 28 points",
keywords = "classification, resolvable design, Steiner system, classification, resolvable design, Steiner system, classification, resolvable design, Steiner system",
author = "Petteri Kaski and {\"O}sterg{\aa}rd, {Patric R.J.}",
year = "2009",
language = "English",
volume = "59",
pages = "121--136",
journal = "Mathematica Slovaca",
issn = "0139-9918",
publisher = "Versita",
number = "2",
}