 The appeal was notable for departing from the accepted tradition of addressing appeals to Soviet officials, and became the first direct appeal by dissidents to the international public.The document was signed with their full names and addresses and was transmitted on foreign radio stations broadcasting in the Soviet Union on 11 January 1968.Following the tradition of the convicted Ginzburg's "White Book," a samizdat account of the "trial of the four" was in turn compiled by Pavel Litvinov.