http://qiserver.ugr.es/cod/1510040.cif
http://qiserver.ugr.es/cod/1538912.cif
http://qiserver.ugr.es/cod/1541965.cif
http://qiserver.ugr.es/cod/1542076.cif
http://qiserver.ugr.es/cod/1542104.cif