http://qiserver.ugr.es/cod/1524002.cif
http://qiserver.ugr.es/cod/1524003.cif
http://qiserver.ugr.es/cod/1537694.cif
http://qiserver.ugr.es/cod/1537697.cif
http://qiserver.ugr.es/cod/1539619.cif