http://qiserver.ugr.es/cod/1010774.cif
http://qiserver.ugr.es/cod/1010775.cif
http://qiserver.ugr.es/cod/1010969.cif
http://qiserver.ugr.es/cod/1011120.cif
http://qiserver.ugr.es/cod/1011172.cif
http://qiserver.ugr.es/cod/1540232.cif
http://qiserver.ugr.es/cod/9012420.cif