1. Anderson A.R., Belnap N.D. Jr.: Entailment. The Logic of Relevance and Necessity, vol. 1. Princeton University Press, Princeton (1975)
2. Arruda, A. I., On the imaginary logic of N. A. Vasil’ev, in A. I. Arruda, N. C. A. da Costa, and R. Chuaqui (eds.), Non-classical Logics, Model Theory and Computability, North-Holland, Amsterdam, 1977, pp. 3–24.
3. Batens, D., Spoiled for choice?, Journal of Logic and Computation (in print). Doi: 10.1093/logcom/ext019 , 1913.
4. Batens, D., Paraconsistent extensional propositional logics, Logique et Analyse 90–91:195–234, 1980.
5. Batens, D., Inconsistency-adaptive logics, in E. Orłowska (ed.), Logic at Work. Essays Dedicated to the Memory of Helena Rasiowa, Physica Verlag (Springer), Heidelberg, New York, 1999, pp. 445–472.