Project "POLYGAM". Synphased network of radio telescopes representing a unique multiprofile physical instrument.В. А. Алексеев, Ya. S. Yatskiv, Eh. D. Gatehlyuk et al.|Soobshcheniya Spetsial'noj Astrofizicheskoj Observatorii|1980Cited by 0
Solar System VLBI Astrometry: The Venus Balloon ExperimentR. A. Preston, P. Kaufmann, J. Ellis et al.|Symposium - International Astronomical Union|1988Cited by 0