Agata Ciabattoni, Dov M. Gabbay, Nicola Olivetti. Cut-free proof systems for logics of weak excluded middle. Soft Comput., 2(4):147-156, 1998. [doi]
@article{CiabattoniGO98,
title = {Cut-free proof systems for logics of weak excluded middle},
author = {Agata Ciabattoni and Dov M. Gabbay and Nicola Olivetti},
year = {1998},
doi = {10.1007/s005000050047},
url = {http://dx.doi.org/10.1007/s005000050047},
tags = {logic},
researchr = {https://researchr.org/publication/CiabattoniGO98},
cites = {0},
citedby = {0},
journal = {Soft Comput.},
volume = {2},
number = {4},
pages = {147-156},
}