@article {262,
	title = {Plataforma para servicios de facturaci{\'o}n y pago en ambientes ubicuos},
	journal = {Ingenier{\'\i}a y Universidad},
	volume = {13},
	year = {2009},
	month = {Enero 2009},
	pages = {175},
	type = {A2},
	chapter = {157},
	keywords = {Computaci{\'o}n ubicua, pago{\textemdash}innovaciones tecnol{\'o}gicas, pago{\textemdash}medidas de seguridad},
	issn = {0123-2126},
	url = {http://www.scielo.org.co/scielo.php?pid=S0123-21262009000100008\&script=sci_arttext},
	author = {Oscar Mauricio Caicedo and Zeida Mar{\'\i}a Solarte Astaiza and Mario Ausecha and Javier Imbuz}
}
