Ulbrich, Siegfried; Blecher, Carl Ulrich https://data.muziekschatten.nl/som/f365f47df8452b742ba6c78b70d4db7a an entity of type: Person schema:name Ulbrich, Siegfried; Blecher, Carl Ulrich schema:keywords Ulbrich, Siegfried; Blecher, Carl Ulrich rdf:type schema:Person data from the linked data cloud