@book {27,
	title = {Los Nombres Comunes de las Plantas de la Regi{\'o}n Platense},
	year = {1990},
	publisher = {PUE},
	organization = {PUE},
	keywords = {Nombres comunes},
	author = {O. Del Puerto and P. Davies and E. Sequeira}
}
@inbook {26,
	title = {Coreopsideae},
	year = {2009},
	keywords = {Coreopsideae},
	author = {D. J. Crawford and M. Tadesse and M. E. Mort and R. T. Kimball and C. P. Randle}
}
