@article {781,
	title = {Sobre la flora y la vegetaci{\'o}n del macizo de Pe{\~n}a Ubi{\~n}a},
	journal = {Trab. Dept. Bot. Fisiol. Veg. MadridTrab. Dept. Bot. Fisiol. Veg. Madrid},
	volume = {3},
	year = {1971},
	pages = {47-123},
	author = {Rivas-Mart{\'\i}nez,S., Izco,J. \& Costa,M.}
}
@article {424,
	title = {An{\'a}lisis de los caracteres morfol{\'o}gicos en poblaciones de Lolium multiflorum y Lolium perenne},
	journal = {PastosPastos},
	volume = {1},
	year = {1971},
	pages = {26-37},
	author = {LindnerSelemann,R.}
}
