1 -- SG/4: ADAM - The Starlink Software Environment.
2 -- Irwin, M.J., 1985, Automatic analysis of crowded fields, Mon.Not.R.astr.Soc., 214, 575-604.
3 -- SUN/42: DAOPHOT - Stellar Photometry Package.
4 -- SUN/45: PHOTOM - An aperture photometry routine.
5 -- SUN/190: CURSA - Catalogue and Table Manipulations Applications
6 -- SUN/95: KAPPA - Kernel Application Package.
7 -- SUN/48: AGI - Applications Graphics Interface Programmers Guide.
8 -- SUN/120: CATPAC - Catalogue Applications Package.
9 -- SUN/15: PGPLOT - Graphics Subroutine Library.
10 -- SUN/180: ESP - The extended surface photometry package.
11 -- SUN/139: CCDPACK - CCD data reduction package.
12 -- SUN/137: PONGO - A Set of Applications for Interactive Data Plotting.
13 -- MUD/159/160: SM - interactive graphics package.
PISA [2.5ex Position Intensity and Shape Analysis