http://qiserver.ugr.es/cod/1008002.cif
http://qiserver.ugr.es/cod/1008003.cif
http://qiserver.ugr.es/cod/1541631.cif
http://qiserver.ugr.es/cod/1541677.cif
http://qiserver.ugr.es/cod/1542133.cif
http://qiserver.ugr.es/cod/9009749.cif