1. Energy intensity of GDP in the light of energy policy objectives in Poland until 2030
Energy intensity of GDP in the light of energy policy objectives in Poland until 2030 / Krzysztof Adam Firlej.In: Hradec Economic Days 2012 [256 s.]. ISBN 978-80-7435-172-3 (brož.) Hradecké ekonomické dny 2012. Hradec Králové : Gaudeamus, 2012. S. 54-60. http://fim2.uhk.cz/hed/data/proceedings_2012_2.pdf.