UdG users
1942-04-30 Letter
1943-08 Letter
1943-08-04 Letter
1943-08-05 Letter
1943-08-07 Letter
1943-08-14 Letter
1943-10-06 Letter
1944-04-07 Letter
1944-07-10 Letter
1944-10-22 Letter
1945 Letter
1945-01-22 Letter
1945-12 Letter
1946-04-08 Letter