Chemosystematic markers for the essential oils in leaves of Mentha species cultivated or growing naturally in EstoniaOrav, Anne; Kapp, Karmen; Raal, AinProceedings of the Estonian Academy of Sciences2013 / p. 175-186 https://artiklid.elnet.ee/record=b2624901*est

Commercial peppermint (Mentha x piperita L.) teas : antichlamydial effect and polyphenolic compositionKapp, Karmen; Hakala, Elina; Orav, AnneFood research international2013 / p. 758-766 : ill