Air quality in Europe - 2013 report. Luxembourg : Publications Office of the European Union, 2013. 107 s. EEA report, no 9/2013. Available on Internet: <http://bookshop.europa.eu/en/air-quality-in-europe-pbTHAL13010/> ISBN 978-92-9213-406-8. ISSN 1725-9177. [Copy count : 1, currently available 0, at library only 1]