TITLE: GCN CIRCULAR NUMBER: 30911 SUBJECT: Swift GRB211001.03 / trigger 1076121 : MASTER OT retraction DATE: 21/10/01 07:42:35 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru> E. Gorbovskoy, V.Lipunov MASTER optical candidate to transients sources from GCN 30904 is not astrophysical.