171 citations · 410 across the 17 of their papers we have counts for
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astro-ph2005
VLBI phase-reference observations of the gravitational lens JVAS B0218+357
Rupal Mittal, Richard Porcas, Olaf Wucknitz +2
We present the results of phase-referenced VLBA+Effelsberg observations at five frequencies of the double-image gravitational lens JVAS B0218+357, made to establish the precise reg…
astro-ph2005★ 4 cited
Measurement of core-shifts with astrometric multi-frequency calibration
Maria J. Rioja, Richard Dodson, Richard W. Porcas +2
VLBI is unique, among the space geodetic techniques, in its contribution to defining and maintaining the International Celestial Reference Frame, providing precise measurements of…