UdG users
1989-01-15 Letter
1988-12-10 Letter
1987-11-26 Letter
1986-07-22 Letter
1986-07-11 Letter
1986-06-01 Letter
1985-08-27 Letter
1983-04-02 Letter
1983-02-22 Letter
1983-02-18 Letter
1982-11-27 Letter
1982-11-25 Letter
1982-11-20 Letter
1981-11-20 Letter
1981-11-15 Letter
1980-10-27 Letter
1980-10-25 Letter
1980-05-28 Letter
1980-05-18 Letter
1979-10-28 Letter
1979-10-16 Letter
1979-09-07 Letter
1979-01-21 Letter
1977-12-10 Letter