In what year did the physicist who founded the Committee on Human Rights in the USSR with Valery Chalidze and Andrei Tverdokhlebov die?
Committee on Human Rights in the USSR: The Committee on Human Rights in the USSR (Russian: Комите́т прав челове́ка в СССР ) was founded in 1970 by dissident Valery Chalidze together with Andrei Sakharov and Andrei Tverdokhlebov. Andrei Sakharov: Andrei Dmitrievich Sakharov (Russian: Андре́й Дми́триевич Са́харов ; 21 May 192114 December 1989) was a Russian nuclear physicist, dissident, and activist for disarmament, peace and human rights.
i don't know