http://qiserver.ugr.es/cod/1510706.cif
http://qiserver.ugr.es/cod/1525099.cif
http://qiserver.ugr.es/cod/1525371.cif
http://qiserver.ugr.es/cod/1525372.cif
http://qiserver.ugr.es/cod/1527944.cif
http://qiserver.ugr.es/cod/1538220.cif
http://qiserver.ugr.es/cod/1538222.cif
http://qiserver.ugr.es/cod/1538225.cif