Composition #2: Aligiannis, N., Kalpoutzakis, E., Chinou, IB., 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, 2001, vol. 49, no. 2, p. 811–815. DOI: 10.1021/jf001018w.
[
DOI link]