He holds lectures and seminars in Switzerland in the cities Zürich and Winterthur in German and in Biel (French part of Switzerland) he talks French.
In Biel (French part of Switzerland) he talks French. He holds lectures and seminars in Switzerland in the cities Zürich and Winterthur in German.
He holds lectures and seminars in Switzerland in the cities Zürich and Winterthur in German. In Biel (French part of Switzerland) he talks French.
He holds lectures and seminars in Switzerland in the cities Zürich and Winterthur in German. In Biel (French part of Switzerland) he talks French.