Transitions from authoritarian rule : Latin America - O'Donnell, Guillermo; Schmitter, Philippe C.; Whitehead, Laurence; D'Donnell, Guillermo; Garretón, Manuel Antonio; Martins, Luciano; Middlebrook, Kevin J.; Gillespie, Charles G.; Cotler, Julio; Karl, Terry Lynn; Cavarozzi, Marcelo; Whitehead, Laurence (Johns Hopkins University, 1993)