http://qiserver.ugr.es/cod/1001688.cif
http://qiserver.ugr.es/cod/1509467.cif
http://qiserver.ugr.es/cod/1510903.cif
http://qiserver.ugr.es/cod/1529530.cif
http://qiserver.ugr.es/cod/1530092.cif
http://qiserver.ugr.es/cod/1530314.cif