*Klar, Rebecca (June 2, 2019). [https://thehill.com/homenews/media/446534-twitter-apologizes-for-blocking-accounts-ahead-of-tiananmen-square-anniversary Twitter apologizes for blocking accounts ahead of Tiananmen Square anniversary]. ''The Hill''. Retrieved June 2, 2019.</ref> | *Klar, Rebecca (June 2, 2019). [https://thehill.com/homenews/media/446534-twitter-apologizes-for-blocking-accounts-ahead-of-tiananmen-square-anniversary Twitter apologizes for blocking accounts ahead of Tiananmen Square anniversary]. ''The Hill''. Retrieved June 2, 2019.</ref> |