About: http://webisa.webdatacommons.org/371585160

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Within a couple of years, mostly in the summertime, I ??? tracked down many of the German sources.
http://www.w3.org/ns/prov#wasQuotedFrom	sobs.org