Liberec Economic Forum 2009 : proceedings of the 9th international conference : 15th-16th September 2009 Liberec, Czech Republic, EU. 1st ed. Liberec : Technical University of Liberec, 2009. 443 s. Available on Internet: <http://toc.nkp.cz/NKC/201001/contents/nkc20092025171_1.pdf> ISBN 978-80-7372-523-5.