David A. Boboltz

Improving the ICRF Using the Radio Reference Frame Image Database

Kenneth J. Johnston, Ralph A. Gaume, Alan Lee Fey, 2000 .

Is There a Need for an Improved Celestial Reference Frame

Norbert Zacharias, Ralph A. Gaume, Alan Lee Fey, 2009 .

Dissemination of ICRS products and information on ICRF radio sources

A.-M. Gontier, C. Barache, S. Bouquillon, 2006 .

Astrophysics of reference frame tie objects

Norbert Zacharias, Kenneth J. Johnston, Ralph A. Gaume, 2003, SPIE Astronomical Telescopes + Instrumentation.

The Proper Motion of 4C 39.25 Revisited

Alan Lee Fey, Roopesh Ojha, David A. Boboltz, 2008 .

THE CELESTIAL REFERENCE FRAME AT 24 AND 43 GHz. I. ASTROMETRY

Jonathan D. Romney, Edward B. Fomalont, O. J. Sovers, 2010 .

MERLIN Astrometry of 11 Radio Stars

Simon T. Garrington, Ralph A. Gaume, Alan L. Fey, 2006 .

Very Large Array Plus Pie Town Astrometry of 46 Radio Stars

Norbert Zacharias, K. J. Johnston, Ralph A. Gaume, 2007 .