@article {853,
	title = {Descripciones funcionales de colecci{\'o}n y colecci{\'o}n fuerte en la aritm{\'e}tica},
	journal = {I Congreso Iberoamericano de Filosof{\'\i}a},
	year = {1998},
	month = {21-26/09/1998},
	address = {C{\'a}ceres - Madrid (Spain)},
	author = {Carmen Graciani-D{\'\i}az and Mario J. P{\'e}rez-Jim{\'e}nez and {\'A}lvaro Romero-Jim{\'e}nez}
}
