http://qiserver.ugr.es/cod/1509817.cif
http://qiserver.ugr.es/cod/1524944.cif
http://qiserver.ugr.es/cod/1535274.cif
http://qiserver.ugr.es/cod/1536464.cif
http://qiserver.ugr.es/cod/1537092.cif
http://qiserver.ugr.es/cod/1537130.cif
http://qiserver.ugr.es/cod/9012124.cif