Antonino Drago. The Square of Opposition and the Four Fundamental Choices. Logica Universalis, 2(1):127-141, 2008. [doi]
@article{Drago08,
title = {The Square of Opposition and the Four Fundamental Choices},
author = {Antonino Drago},
year = {2008},
doi = {10.1007/s11787-007-0032-9},
url = {http://dx.doi.org/10.1007/s11787-007-0032-9},
researchr = {https://researchr.org/publication/Drago08},
cites = {0},
citedby = {0},
journal = {Logica Universalis},
volume = {2},
number = {1},
pages = {127-141},
}