http://qiserver.ugr.es/cod/1526267.cif
http://qiserver.ugr.es/cod/1526268.cif
http://qiserver.ugr.es/cod/1526270.cif
http://qiserver.ugr.es/cod/1526271.cif
http://qiserver.ugr.es/cod/1526272.cif
http://qiserver.ugr.es/cod/1537763.cif