Report of court proceedings in the case of the anti-Soviet Trotskyite centre : heard before the Military Collegium of the Supreme Court of the U.S.S.R., Moscow, January 23-30, 1937, in re: Y.L. Pyatakov ... [et al.] accused of treason against the country, espionage, acts of diversion, wrecking activities, and the preparation of terrorist acts, i.e., of crimes covered by articles 58(1a), 58(8), 58(9) and 58(11) of the Criminal code of the R.S.F.S.R.