http://qiserver.ugr.es/cod/1001380.cif
http://qiserver.ugr.es/cod/8103846.cif
http://qiserver.ugr.es/cod/8104289.cif
http://qiserver.ugr.es/cod/8104293.cif
http://qiserver.ugr.es/cod/8104295.cif
http://qiserver.ugr.es/cod/8104314.cif
http://qiserver.ugr.es/cod/9008396.cif