Shao,
Yali
Max Planck Institute for Radio Astronomy, Max Planck Society;
Weiss,
Axel
Max Planck Institute for Radio Astronomy, Max Planck Society;
Brunthaler,
Andreas
Max Planck Institute for Radio Astronomy, Max Planck Society;
Menten,
Karl M.
Max Planck Institute for Radio Astronomy, Max Planck Society;