http://qiserver.ugr.es/cod/1511038.cif
http://qiserver.ugr.es/cod/1524945.cif
http://qiserver.ugr.es/cod/1524946.cif
http://qiserver.ugr.es/cod/1527837.cif
http://qiserver.ugr.es/cod/1530202.cif