Inventiveness in Poland and its significance for the economy

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