A Software Tool for Investigating Optical Signal Processing. - John G. Keating; Kenneth Adamson; J. Halligan; D. J. Gleeson; M. Klima; Susan M. P. McKenna-Lawlor (Applied Informatics, 1994)

A Portable Software Tool for Parallel Systems Development. - Ruan I. O'Tiarnaigh; J. Halligan; John G. Keating; J. Seery; Kenneth Adamson (Applied Informatics, 1994)

Radio Intelligence and Communication Security. - J. Halligan (Cryptologia, 1994)