1. Apt, K.R., Bezem, M.: Acyclic programs. New Gener. Comput. 9, 335–363 (1991)
2. Augustin, T., Coolen, F.P.A., de Cooman, G., Troffaes, M.C.M.: Introduction to Imprecise Probabilities. Wiley, USA (2014)
3. Baral, C., Gelfond, M., Rushton, N.: Probabilistic reasoning with answer sets. Theor. Pract. Logic Program. 9(1), 57–144 (2009)
4. Baral, C., Subrahmanian, V.: Dualities between alternative semantics for logic programming and nonmonotonic reasoning. J. Autom. Reason. 10(3), 399–420 (1993)
5. Ceylan, Í.Í, Lukasiewicz, T., Peñaloza, R.: Complexity results for probabilistic Datalog
$$^\pm $$
. In: European Conference on Artificial Intelligence, pp. 1414–1422 (2016)