G. Sallet Sur la structure de l'ensemble d'accessibilité de certains systèmes: Application à l'equivalence des systèmes. [Citation Graph (0, 0)][DBLP] Mathematical Systems Theory, 1985, v:18, n:2, pp:125-133 [Journal]
Etienne Grandjean Universal Quantifiers and Time Complexity of Random Access Machines. [Citation Graph (0, 0)][DBLP] Mathematical Systems Theory, 1985, v:18, n:2, pp:171-187 [Journal]
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