| |
| 1968 | ||
|---|---|---|
| 3 | Hugues LeBlanc: Subformula Theorems for N-Sequents. J. Symb. Log. 33(2): 161-179 (1968) | |
| 2 | Hugues LeBlanc: A Simplified Account of Validity and Implication for Quantificational Logic. J. Symb. Log. 33(2): 231-235 (1968) | |
| 1 | Hugues LeBlanc: On Meyer and Lambert's Quantificational Calculus FQ. J. Symb. Log. 33(2): 275-280 (1968) | |