History (2) Socialists (2) Science (2) Political science (2) Sociological aspects (2) Science (2) Experiments (2) Ciencias (2) Historia (2) Sociología (2) Sociologie (2) Histoire (2) Sociologie (2) Science politique (2) Science (2) Afrique lusophone (2) Expériences (2) Histoire (2) Socialistes (2) Pays socialistes (2) Sciences (2) Afrique (2) histoire (2) Afrique (2) France (1) Dynamics (1) Causes (1) Congresses (1) Congresses (1) Dialogue analysis (1)