http://qiserver.ugr.es/cod/1527416.cif
http://qiserver.ugr.es/cod/1527417.cif
http://qiserver.ugr.es/cod/1527679.cif
http://qiserver.ugr.es/cod/1528004.cif
http://qiserver.ugr.es/cod/1540243.cif
http://qiserver.ugr.es/cod/1540245.cif