P o S ( R T S 2 0 1 2 ) 0 2 8 SS 433 , microquasars , and other transients

X-ray binaries have been an important key in understanding t he jet-disc symbiosis in accreting black holes on all mass scales, from stellar-mass to superma ssive black holes. SS433 was the first Galactic XRB that has been extensively studied in the ra dio regime. The radio properties, including the highest angular resolution data can now be bet ter understood in the framework for accretion disc state transitions that is observed in microq uasars (black hole X-ray binary systems). SS433 remains unique in various ways to date, and there is sti ll much to learn about black hole accretion phenomena. In the meantime, the electronic very lon g baseline (e-VLBI) developments at the European VLBI Network (EVN) has allowed us to study micro quasars and other transients at milliarcsecond resolutions more flexibly than was possible before. Even more new opportunities will arise as the SKA pathfinders become operational.