1. A space telescope for IR spectroscopy of Earthlike planets;Angel;Nature,1986
2. Use of a 16 m telescope to detect Earthlike planets;Angel,1990
3. J. R. P. Angel, N. J. Woolf, Burge, 1996, Planet finder options III: Focal plane instrumentation and adjustment, Proceedings of the Toledo IR Space Interferometry Workshop about Astrophysics and the Study of Earthlike Planets
4. An imaging nulling interferometer to study extrasolar planets;Angel;Astrophys. J.,1997
5. Supporting Space Missions. Exploration of Neighboring Planetary Systems (ExNPS), Mission and Technology Road Map;Beichman;Report to the Townes Blue Ribbon Panel,1996