@article {7755,
	title = {The Platanar-Aguas Zarcas volcanic centers, Costa Rica: spatial-temporal association of Quaternary calc-alkaline and alkaline volcanism},
	volume = {55},
	year = {1993},
	month = {Aug-01-1993},
	pages = {443-453},
	issn = {0258-8900, 1432-0819},
	doi = {10.1007/bf00302004},
	url = {http://dx.doi.org/10.1007/bf00302004},
	author = {Alvarado, G E and Carr, M J}
}
