Collect. Czech. Chem. Commun.
1968, 33, 1730-1737
https://doi.org/10.1135/cccc19681730
On terpenes. CXCII. The constitution and absolute configuration of onopordopicrine - A sesquiterpenic lactone from Onopordon acanthium L.
B. Drożdż, M. Holub, Z. Samek, V. Herout and F. Šorm
This article is part of serial On terpenes.