Gottlob, G., Leone, N., & Veith, H. (1995). Second Order Logic and the Weak Exponential Hierarchies. Springer.
Chicago-čujuhus (17. p.)Gottlob, G., N. Leone, juo H. Veith. Second Order Logic and the Weak Exponential Hierarchies. Springer, 1995.
MLA-čujuhus (9. p.)Gottlob, G., et al. Second Order Logic and the Weak Exponential Hierarchies. Springer, 1995.
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