Comparison of essential oil content and composition of wild majoram and wild thyme growing in Estonia with thyme herbPaaver, Urve; Raal, Ain; Arak, Elmar; Pudersell, K.; Orav, Anne; Ivask, KairePharmacy and Pharmaceutical Sciences World Congress : FIP 2002, Nice, France : abstracts2002 / p. MAPS-P-406 Study of essential oil from medicinal plants using gas chromatography and mass spectrometryRaal, Ain; Arak, Elmar; Pudersell, K.; Orav, Anne; Kailas, TiiuEuropean journal of pharmaceutical sciences2003 / Supplement 1, XVII Helsinki University Congress of Drug Research, p. P2.1