UdG users
1987-07-13 Letter
1987-06-18 Letter
1986-07-29 Letter
1985-08-12 Letter
1985-07-22 Letter
1985-05-27 Letter
1985-04-14 Letter
1985-03-29 Letter
1984-11-12 Letter
1984-11-05 Letter
1984-06-26 Letter
1984-02-05 Letter
1984-01-18 Letter
1983-11-30 Letter
1983-08-18 Letter
1983-08-04 Letter
1983-07-25 Letter
1983-06-20 Letter
1983-06-04 Letter
1983-03-02 Letter
1983-02-08 Letter
1983-01-11 Letter
1982-12-28 Letter
1980-04-18 Letter