@article {621,
	title = {Distribuci{\'o}n de los Pterid{\'o}fitos en Asturias},
	journal = {Trab. Dept. Bot. Univ. OviedoTrab. Dept. Bot. Univ. Oviedo},
	volume = {1},
	year = {1977},
	pages = {17-40},
	author = {Mayor,M., D{\'\i}az,T.E., Navarro,F. \& Sim{\'o},R.M.}
}
@article {421,
	title = {Algunas consideraciones acerca de la provincia corol{\'o}gica Orocant{\'a}brica},
	journal = {Anales Jard. Bot. MadridAnales Jard. Bot. Madrid},
	volume = {34},
	year = {1977},
	pages = {219-253},
	author = {NavarroAndr{\'e}s,S.\&D{\'\i}azGonz{\'a}lez,T.E.}
}
@article {423,
	title = {Algunas novedades y anotaciones para la flora astur-leonesa},
	journal = {Trab. Dept. Bot. Univ. OviedoTrab. Dept. Bot. Univ. Oviedo},
	volume = {1},
	year = {1977},
	pages = {41-53},
	author = {NavarroAndr{\'e}s,S.\&D{\'\i}azGonz{\'a}lez,T.E.}
}
@article {429,
	title = {Aportaciones a la flora espa{\~n}ola},
	journal = {Anales Jard. Bot. MadridAnales Jard. Bot. Madrid},
	volume = {34},
	year = {1977},
	pages = {157-173},
	author = {Vald{\'e}s-Bermejo,E.\&L{\'o}pez,G.}
}
@article {432,
	title = {Aportaciones al cat{\'a}logo flor{\'\i}stico de la provincia de Le{\'o}n. II},
	journal = {Acta Bot. MalacitanaActa Bot. Malacitana},
	volume = {3},
	year = {1977},
	pages = {63-120},
	author = {Carb{\'o} Nadal,R., Mayor L{\'o}pez,M., Andr{\'e}s Rodr{\'\i}guez,J. \& Losa Quintana,J.M.}
}
