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S dárkovým poukazem nešlápnete vedle. Obdarovaný si za dárkový poukaz může vybrat cokoliv z naší nabídky.
How many open access articles are published each year? This study offers a partial answer, looking at all journals in the Directory of Open Access Journals as of June 2015. Based on full site visits (not sampling), the book offers detailed analysis of more than 9,512 journals and quick notes on several hundred others.