Links in Phys.org's recent The detection of phosphine in Venus' clouds is a big deal, and here's how we can find out if it really is life lead to:
Summary Report by the Venus Aerial Platforms Study Team, October 2018, JPL D-102569
In 1985, two balloons were inserted into the atmosphere as elements of the Venus-Halley (VeGa) mission, the last mission to Venus conducted by the Soviet Union In two Earth days, each balloon travelled approximately 11,500 km in the superrotating winds at an altitude of about 54 km, tracked by a global array of twenty radio observatories. Observations by instruments on the balloons and from radio tracking of their motion provided unique information on the circulation of the Venus atmosphere.
Question: I'd like to read more about this "global array of twenty radio observatories", especially how it was coordinated and distributed to provide continuous observation of Venus while the balloons transmitted. Where are these details described and what is a short summary?