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=Emil@Alfons@Plato@John@Albert!/N=v.Coburg
Emil Alfons Plato John Albert! v.Coburg
alternatively: /cgi-bin/llmult/LANG=germ/P=23001540