Composition and Antimicrobial Activity of the Essential Oil of Achillea multifida - Başer, K Hüsnü Can; Demirci, Betül; Demirci, Fatih; Koçak, Serkan; Akıncı, Çağrı; Malyer, Hulusi; Güleryüz, Gürcan (Planta Medica, 2002)