Tena Cucala, D.J., Wałęga, P.A., Cuenca Grau, B. and Kostylev, E. 2021. Stratified Negation in Datalog with Metric Temporal Operators. Proceedings of the AAAI Conference on Artificial Intelligence. 35, 7 (May 2021), 6488-6495. DOI:https://doi.org/10.1609/aaai.v35i7.16804.