?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=B%C3%A9jar+Mu%C3%B1oz&rft.au=B%C3%A9jar+Mu%C3%B1oz%2C+Sonia&rft.aufirst=Sonia&rft.inst=E.T.S.I.+de+Sistemas+Inform%C3%A1ticos+(UPM)+%3Chttps%3A%2F%2Foa.upm.es%2Fview%2Finstitution%2FETSI%3D5FSistemas%3D5FInfor%2F%3E&rft.tpages=75&rft.title=Universo+Santa+Tecla&rft.date=July+2020&rft.degree=Master+thesis