@Article{ ORTEGA:140-141,

author = { JOSÉ LUIS ORTEGA MARTÍN } ,

title = { ESSENTIAL TEACHING SKILLS },

journal = { PORTA LINGUARUM },

year = { 2006 },

issn = { 1697-7467 },

pages = { 140-141 },

doi = { www.ugr.es/local/portalin },

}