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Faber, W., Morak, M. and Woltran, S. 2019. Strong Equivalence for Epistemic Logic Programs Made Easy. Proceedings of the AAAI Conference on Artificial Intelligence. 33, 01 (Jul. 2019), 2809-2816. DOI:https://doi.org/10.1609/aaai.v33i01.33012809.