*Colin J. Beck, Dissertation submitted to Stanford University Department of Sociology graduate Ph.D program, March 2009, "Ideological roots of waves of revolution," ProQuest, 2009, pp. 1-5[permanent dead link]
Michael Lind, Vietnam, the Necessary War: A Reinterpretation of America's Most Disastrous Military Conflict, Simon and Schuster, 2002
p 37ISBN0-684-87027-4, ISBN978-0-684-87027-4 - "The revolutionary wave effect produced by the fall of Saigon in 1975 was far more significant than the regional domino effect in Southeast Asia proper. [...] Mark N. Katz has identified a 'Marxist-Leninist revolutionary wave' that peaked in the 1960s and 1970s, along with an 'Arab nationalist revolutionary wave' that began with the [1978-1979] Iranian Revolution. Samuel P. Huntington has identified a 'democratic wave' that began with the defeat of the Soviet bloc in the Cold War. [...] The Marxist-Leninist revolutionary wave associated with the Vietnam War saw 'affiliate Marxist-Leninist revolutions' come to power outside of Indochina in the Congo (1964, 1968), Benin (1972), Ethiopia and Guinea-Bissau (1974), Madagascar, Cape Verde, Mozambique, and Angola (1975), Afghanistan (1978), and Grenada and Nicaragua (1979)."
