?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=Claudio+Antonio&rft.aulast=Feijoo+Gonzalez&rft.au=Feijoo+Gonzalez%2C+Claudio+Antonio&rft.btitle=Workshop+of+the+Maseltov+Project+%22Mobile+services+for+inmigrant+people%3A+learning%2C+information+and+community+building+for+employment+and+integration%22&rft.tpages=9&rft.date=April+2012&rft.title=Opportunities+and+challenges+of+mobile+social+networks&rft.genre=proceeding