Aligiannis, N. Kalpoutzakis, E. Chinou, I.B. Mitakou, S. Gikas, E. Tsarbopoulos, A., Composition and antimicrobial activity of the essential oils of five taxa of Sideritis from Greece, Journal of Agricultural and Food Chemistry, (49), 811-815, 2001, 0021-8561, 1520-5118