http://qiserver.ugr.es/cod/8103435.cif
http://qiserver.ugr.es/cod/8103438.cif
http://qiserver.ugr.es/cod/8103892.cif
http://qiserver.ugr.es/cod/8103983.cif
http://qiserver.ugr.es/cod/8103984.cif
http://qiserver.ugr.es/cod/8103985.cif