http://qiserver.ugr.es/cod/1521471.cif
http://qiserver.ugr.es/cod/1521472.cif
http://qiserver.ugr.es/cod/1521856.cif
http://qiserver.ugr.es/cod/1522109.cif
http://qiserver.ugr.es/cod/1522110.cif
http://qiserver.ugr.es/cod/1522111.cif
http://qiserver.ugr.es/cod/1522112.cif
http://qiserver.ugr.es/cod/1522277.cif
http://qiserver.ugr.es/cod/1522279.cif
http://qiserver.ugr.es/cod/1522346.cif
http://qiserver.ugr.es/cod/6000179.cif