@article {779,
	title = {Sobre Hypericum tetrapterum Fre. e H. undulatum Schousb. ex Willd. en Asturias},
	journal = {Anales Jard. Bot. MadridAnales Jard. Bot. Madrid},
	volume = {55},
	year = {1997},
	pages = {161-163},
	author = {Guill{\'e}n Oterino,A., La{\'\i}nz,M., Lastra Men{\'e}ndez,J.J. \& Mayor,M.}
}
