http://qiserver.ugr.es/cod/1007051.cif
http://qiserver.ugr.es/cod/1008755.cif
http://qiserver.ugr.es/cod/1008759.cif
http://qiserver.ugr.es/cod/1527170.cif
http://qiserver.ugr.es/cod/1527171.cif
http://qiserver.ugr.es/cod/1528300.cif
http://qiserver.ugr.es/cod/9012076.cif
http://qiserver.ugr.es/cod/9012077.cif