?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=Diego&rft.au=Riofr%C3%ADo+Luzcando%2C+Diego&rft.aulast=Riofr%C3%ADo+Luzcando&rft.title=A+model+for+student+action+prediction+in+3D+virtual+environments+for+procedural+training&rft.btitle=EDM+2015%3A+proceedings+of+the+8th+International+Conference+on+Educational+Data+Mining&rft.date=2015&rft.isbn=978-84-606-9425-0&rft.genre=proceeding