1
Published 2019
OECD Publishing

2
Published 2022
OECD Publishing

10
Published 2017
OECD Publishing

11
by Dumont, Hanna
Published 2013
Wolters Kluwer Polska Sp. z o.o., Poland

12
Published 2009
Ministry of Regional Development, Poland

13
Published 2011
Wolters Kluwer Polska Sp. z o.o., Poland

15
Published 2007
Statistics Poland

16
Published 2007
Ministry of Economy, Poland

17
by Fulton, Oliver
Published 2008
Ministry of Science and Higher Education, Poland

18
Published 2008
Ministry of Economy, Poland

19
Published 2007
Ministry of Economy, Poland