Composition #1: BOHLMANN, F., ABRAHAM, WR. NATURALLY OCCURRING TERPENE DERIVATIVES .188. NEW SESQUITERPENE ALCOHOL AND OTHER SUBSTANCES FROM DORONICUM-PARDALIANCHES. PHYTOCHEMISTRY, 1979, vol. 18, no. 4, p. 668–671. DOI: 10.1016/S0031-9422(00)84289-2.
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