?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Stanev%D1%96%C4%8D%D1%96%C5%ABt%C4%97%2C+G.&rft.aulast=Stanev%D1%96%C4%8D%D1%96%C5%ABt%C4%97&rft.aufirst=G.&rft.date=15+%D0%96%D0%BE%D0%B2%D1%82%D0%B5%D0%BD%D1%8C+2013&rft.title=Stadies+of+European+freshwater+species+of+Bucephalidae+(Digenea)+based+on+DNA+sequences&rft.genre=proceeding