The information is available in Polish as well as English.
It was verified and updated in 2011 by Alexander Tölle and Magdalena Wdowicka (both Institute of Socio-Economic Geography and Spatial Management of the Adam Mickiewicz University in Poznań). The original was written in 2007 by Marek Dutkowski (Department of Regional Development of the University of Szczecin). For each subsection the respective authors and the version of work are specified.
Furthermore a glossary including the most important planning terms in Poland is available in the following language versions:
All of the terms are current as of 2011.
A special online publication is available in German and Polish: "Planung in Deutschland und Polen aus kommunaler Perspektive / Planowanie w Polsce i w Niemczech z perspektywy gminy"