 Ginzburg put together a collection of materials on the case and trial of writers Sinyavsky and Daniel (later called "White Book"), and in November 1966 sent copies to deputies of the USSR Supreme Soviet and to the KGB.Alexey Dobrovolsky was a first-year student at the Moscow State Institute of Culture, working in the State Literary Museum.In 1957 he had been sentenced under article 58-10 of the RSFSR Criminal Code to three years' corrective labour.