http://qiserver.ugr.es/cod/1537144.cif
http://qiserver.ugr.es/cod/1537147.cif
http://qiserver.ugr.es/cod/1537151.cif
http://qiserver.ugr.es/cod/1537154.cif
http://qiserver.ugr.es/cod/1537158.cif
http://qiserver.ugr.es/cod/1537162.cif
http://qiserver.ugr.es/cod/1537166.cif