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N. Ito; T. Nihei; R. Kakuda; Y. Yaoita; M. Kikuchi. Five new phenylethanoid glycosides from the whole plants of Lamium purpureum L. Chemical & Pharmaceutical Bulletin. 2006, s. 1705–1708. doi:10.1248/cpb.54.1705. PMID17139106.
