http://qiserver.ugr.es/cod/2300392.cif
http://qiserver.ugr.es/cod/2300393.cif
http://qiserver.ugr.es/cod/2300442.cif
http://qiserver.ugr.es/cod/2300443.cif
http://qiserver.ugr.es/cod/2300444.cif
http://qiserver.ugr.es/cod/2300445.cif
http://qiserver.ugr.es/cod/2300522.cif
http://qiserver.ugr.es/cod/9017490.cif
http://qiserver.ugr.es/cod/9017491.cif
http://qiserver.ugr.es/cod/9017492.cif