About this article
Published Online: Jun 21, 2012
Page range: 5 - 6
DOI: https://doi.org/10.2478/v10117-012-0015-7
This content is open access.
Andrzej Kostrzewski
Institute of Palaeogeography and Geoecology, Adam Mickiewicz University, Dzięgielowa 27, 61-131 Poznań, Poland
Tadeusz Stryjakiewicz
Institute of Socio-Economic Geography and Spatial Management, Adam Mickiewicz University, Dzięgielowa 27, 61-131 Poznań, Poland