Košík

Annual report : the Czech Republic : 2011 drug situation / Viktor Mravčík ... [et al.] . Praha : Office of the Government of the Czech Republic, 2012 . 187 s . ISBN 978-80-7440-069-8 (brož.) . http://www.drogy-info.cz/index.php/english/annual_reports_and_other_main_resources/annual_report_the_czech_republic_drug_situation_2011 .   [1, z toho volných 1]