Note that the index numbers are only technical numbers which have no persistence. After a new system generation is done, all of them are invalid. To generate a persistent link, use the name.Use the URL:
http://ww-person.com/cgi-bin/l3/LANG=fran/F=Petra/N=de@Arreses-Rojas@y@Fernández-Cantos@*@de@Cauche
Petra de Arreses-Rojas y Fernández-Cantos * de Cauche
alternatively: /cgi-bin/llmult/LANG=germ/P=20007751