Jürgen Dix, Martin Kummer. Herbrand s Theorem for Nonstandard Inference Operations. Journal of Logic and Computation, 4(2):143-156, 1994.
@article{DixK94,
title = {Herbrand s Theorem for Nonstandard Inference Operations},
author = {Jürgen Dix and Martin Kummer},
year = {1994},
researchr = {https://researchr.org/publication/DixK94},
cites = {0},
citedby = {0},
journal = {Journal of Logic and Computation},
volume = {4},
number = {2},
pages = {143-156},
}