LÓPEZ, Sandra M. Belnap-Dunn Semantics for the Variants of BN4 and E4 which Contain Routley and Meyer’s Logic B. Logic and Logical Philosophy. Online. 12 March 2021. Vol. 31, no. 1, pp. 29-56. [Accessed 17 June 2024]. DOI 10.12775/LLP.2021.004.