Ganbaatar, J.; Shults, E.; Petrova, T.; Shakirova, M.; Otgonsuren, D.; Munkhbat, E.; Badamkhand, D.; Tolstikov, G.; Batsuren, D. Coumarins of Peucedanum Baicalense and Cytotoxic Activity of Some Isolated Coumarins. Mong. J. Chem. 2014, 13, 23-27.