Media type: E-Article Title: Evidence and characterization of a virus of St John's Wort(Hypericum perfora tumL.) Contributor: Kegler, Hartmut; Fuchs, Egon; Plescher, Andreas; Ehrig, Fred; Schliephake, Edgar; Grüntzig, Maria imprint: Informa UK Limited, 1999 Published in: Archives Of Phytopathology And Plant Protection Language: English DOI: 10.1080/03235409909383290 ISSN: 0323-5408; 1477-2906 Keywords: Agronomy and Crop Science Origination: Footnote: