@book{28400,
	author = {Qiao, Y.},
	title = {A pair of epimeric cassane-type diterpenoids and a new labdane-type derivative from Caesalpinia decapetala.},
	url = {https://drive.google.com/file/d/19OBytp3ur4XjTtIfCEQTqISf0PUqLxwB/view?usp=drivesdk}
}