Anal Biochem.
Lindenmeyer MT, García-Piñeres AJ, Castro V, Merfort I. Sesquiterpene lactones inhibit luciferase but not beta-galactosidase activity in vitro and ex vivo. Anal Biochem. 2004 May 15;328(2):147-54. doi: 10.1016/j.ab.2004.01.021. PMID: 15113690.