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| 1995 | ||
|---|---|---|
| 3 | Ruggero Ferro, Stefano Baratella: Non Standard Regular Finite Set Theory. Math. Log. Q. 41: 161-172 (1995) | |
| 1993 | ||
| 2 | Ruggero Ferro, Stefano Baratella: A Theory of Sets with the Negation of the Axiom of Inflnity. Math. Log. Q. 39: 338-352 (1993) | |
| 1978 | ||
| 1 | Ruggero Ferro: Interpolation Theorems for L 2+ k, k. J. Symb. Log. 43(3): 535-549 (1978) | |
| 1 | Stefano Baratella | [2] [3] |