For the only real element of "breaking the republican legality, which occurred in those years", see G. Buonomo, Le due maggioranze, in Mondoperaio, n. 6/2014, p. 11.
Griffin, Roger (1996). «The 'Post-Fascism' of the Alleanza Nazionale: A Case Study in Ideological Morphology». Journal of Political Ideologies1 (2): 123–145. doi:10.1080/13569319608420733. «AN's ideological tap-root is still thrust deep into historical Fascism ... retaining many Fascist core values.».