@article {lugo2013kpg,
	title = {KPG: Certificado Estatal de Lenguas},
	journal = {Revista Nebrija de Ling{\"u}{\'\i}stica Aplicada a la Ense{\~n}anza de Lenguas},
	volume = {13},
	number = {13},
	year = {2013},
	url = {http://www.nebrija.com/revista-linguistica/revista-linguistica-nebrija13/htm/LugoyAlexopoulou.htm},
	author = {LugoMir{\'o}n-Triantafillou, S. and Alexopoulou, Ang{\'e}lica}
}
