@misc{Pyka_Anna_Execution_2013,
 author={Pyka, Anna},
 year={2013},
 rights={Wszystkie prawa zastrzeżone (Copyright)},
 description={Prace Naukowe Uniwersytetu Ekonomicznego we Wrocławiu = Research Papers of Wrocław University of Economics, 2013, Nr 321, s. 115-123},
 publisher={Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu},
 language={eng},
 type={artykuł},
 title={Execution of investment projects based on the public-private partnership model in Poland in the period 2009 to 2011},
 keywords={public private partnership, the difficulties in PPP},
}