@misc{Simon_Szabolcs_Towards,
 author={Simon, Szabolcs},
 howpublished={online},
 publisher={Publishing House of the University of Economics in Katowice},
 language={eng},
 title={Towards an integrated waterway transport system in the Danube Region},
 type={artykuł},
 keywords={environmental impact, infrastructure, macro-region, regional strategy},
}