Taxing wages 2014 : 2012-2013 : special feature: changes in structural labour income tax progressivity over the 2000-2012 period in OECD member countries. Paris : OECD, 2014. 565 s. Dostupné na : <http://www.oecd-ilibrary.org/taxation/taxing-wages-2014_tax_wages-2014-en> ISBN 978-92-64-20916-9. ISSN 1995-3844.