Links
[1] https://civilresistance.info/biblio-item/2009/civil-resistance-czechoslovakia-soviet-invasion-velvet-revolution-1968-1989
[2] https://civilresistance.info/biblio-item/2009/civil-resistance-and-power-politics-experience-non-violent-action-gandhi-present
[3] https://civilresistance.info/section/introduction-nonviolent-action/1-theory-methods-and-examples/1b-strategic-theory-dynamics
[4] https://civilresistance.info/biblio-item/1997/prague-spring-and-its-aftermath-czechoslovak-politics-1968-1970