Multi-frequency Observations and Discovery of a Supernova Associated with the GRB 181201A. - Sergey Belkin; Alexei Pozanenko; Elena Mazaeva; Alina Volnova; Pavel Minaev; Nozomu Tominaga; Sergey Blinnikov; Dmitry Chestnov; Evgeny Klunko; Inna Reva; Vasily Rumyantsev; David Buckley; et al. (DAMDID/RCDL, 2019)