Resumo

RODRIGUEZ DIAZ, Erwin. Por la voluntad o por la fuerza: El escenario para la apertura democrática y la reforma política. Echeverría y López Portillo. Estud. polít. (Méx.) [online]. 2011, n.22, pp.81-106. ISSN 0185-1616.

The transition to a democratic system has an important phase in Luis Echeverría and José López Portillo presidency's period. For twelve years, changes were realized from democracy opening to the political reform.

Palavras-chave : Political transition; Political change; freedom of expression; opposition; political system.

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