http://qiserver.ugr.es/cod/1528456.cif
http://qiserver.ugr.es/cod/1533004.cif
http://qiserver.ugr.es/cod/4334644.cif
http://qiserver.ugr.es/cod/7028217.cif
http://qiserver.ugr.es/cod/7122720.cif
http://qiserver.ugr.es/cod/9001310.cif
http://qiserver.ugr.es/cod/9001407.cif