http://qiserver.ugr.es/cod/1510696.cif
http://qiserver.ugr.es/cod/1511159.cif
http://qiserver.ugr.es/cod/1527391.cif
http://qiserver.ugr.es/cod/1527959.cif
http://qiserver.ugr.es/cod/1540784.cif
http://qiserver.ugr.es/cod/1540785.cif
http://qiserver.ugr.es/cod/1541144.cif