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1. Inventiveness in Poland and its significance for the economy
Inventiveness in Poland and its significance for the economy / Stanisław Urban.In: Hradecké ekonomické dny 2009 [163 s.]. ISBN 978-80-7041-443-9 (brož.) Hradecké ekonomické dny 2009. Hradec Králové : Gaudeamus, 2009. s. 156-162 : 6 tab..