Subjects: '; “...Deutschland <DDR> / Russen 1945-1949...”

Subjects: '; “...Humboldt, Alexander von / Bessel, Friedrich Wilhelm / Briefsammlung 1816-1846 Humboldt, Alexander...”

Subjects: '; “...Wolff, Christian / Langes, Joachim Lange, Joachim / Wolff, Christian Wolff, Christian / Budde...”