Francisco M. García Olmedo, Antonio J. Rodríguez Salas. Negation and BCK-algebras. Math. Log. Q., 49(4):336-346, 2003. [doi]
@article{OlmedoS03,
title = {Negation and BCK-algebras},
author = {Francisco M. García Olmedo and Antonio J. Rodríguez Salas},
year = {2003},
doi = {10.1002/malq.200310035},
url = {http://dx.doi.org/10.1002/malq.200310035},
tags = { algebra},
researchr = {https://researchr.org/publication/OlmedoS03},
cites = {0},
citedby = {0},
journal = {Math. Log. Q.},
volume = {49},
number = {4},
pages = {336-346},
}