https://www.marxists.org/archive/hu-yaobang/1982/september/13.htm
Hu Yaobang's Speech at the First Plenum of the 12th Party Central Committee (September 12, 1982)
https://pekinger-fruehling.univie.ac.at/en/the-democracy-movement-1978-1981/hu-yaobang-and-the-democracy-movement/
Hu Yaobang and the Democracy Movement
Hu Yaobang and the Democracy Movement
and thehudemocracymovement