الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3ab80bccb2ae9827190bb3110752874Testhttps://doi.org/10.1007/s00436-010-2073-xTest
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e19d7751757bc14614955d661069ce3Testhttps://doi.org/10.1007/s00436-006-0250-8Test