UdG users
1979-08-27 Letter
1981-03-03 Letter
1980-03-17 Letter
1983-04-08 Letter
1981-11-15 Letter
1984-05-30 Letter
1985-12-18 Letter
1979-09-10 Letter
1968-10-07 Letter
1985-11-08 Letter
1981-05-21 Letter
1975-10-21 Letter
1987-04-09 Letter
1988-09-09 Letter
1981-05-18 Letter
1984-06-05 Letter
1961-04-04 Letter
1984-07-10 Letter
1999-10-26 Letter
1984-09-04 Letter
1987-01-16 Letter
1974-07-30 Letter
1989-01-09 Letter
1990-10-10 Letter