UdG users
1985-10-30 Letter
1984-12-26 Letter
1984-12-12 Letter
1984-02-04 Letter
1983-12-09 Letter
1983-11-08 Letter
1983-07-25 Letter
1983-07-20 Letter
1983-07-14 Letter
1983-06-07 Letter
1983-04-07 Letter
1983-03-12 Letter
1982-12-12 Letter
1982-11-26 Letter
1982-11-17 Letter
1982-11-10 Letter
1982-10-31 Letter
1982-06-03 Letter
1980-05-07 Letter
1980-04-21 Letter
1980-01-17 Letter
1980-01-02 Letter
1980 Letter
1979-12-10 Letter