1. Adams, M. E., and W. Dziobiak, Lattices of quasivarieties of 3-element algebras, Journal of Algebra 166: 181–210, 1994.
2. Albuquerque, H., J. M. Font, and R. Jansana, The strong version of a sentential logic, Studia Logica, 2017. doi: 10.1007/s11225-017-9709-0 .
3. Albuquerque, H., J. M. Font, and R. Jansana, Compatibility operators in abstract algebraic logic, The Journal of Symbolic Logic 81(2): 417–462, 2016.
4. Albuquerque, H., J. M. Font, R. Jansana, and T. Moraschini, Assertional logics, truth-equational logics and the hierarchies of AAL, in J. Czelakowski, (ed.), Don Pigozzi on Abstract Algebraic Logic and Universal Algebra. To appear.
5. Anderson, A. R., and N. D. Belnap, Entailment: The Logic of Relevance and Necessity, vol. 1, Princeton University Press, 1975.