Several of the more elaborate computational functions in this version of DIPSO have been grafted on
as a result of people exploiting the user interface, with their code eventually being adopted for the
release version. The biggest single contribution is the ELF package, which was developed by Pete
Storey (pjs@star.ucl.ac.uk). Pete also had a hand in NEBCONT, which uses code primarily written by
Pat Harrington (U. of Maryland). Stephen Boyle (sjb@star.ucl.ac.uk) donated the Fourier,
periodogram, and cross-correlation routines; the interstellar line profile code has a long and
chequered history, but was first brought forth in the good old days of punched cards by Clive
Davenhall. DIPSO’s basic structure and command interface owes much to Dane Maslen.
Other contributors include Jack Giddings, Des Middlemass, David Monk, and Starlink
Management.