Delgrande, J. P., Schaub, T., Tompits, H., & Woltran, S. (2009). Merging Logic Programs under Answer Set Semantics. In P. M. Hill & D. S. Warren (Eds.), Logic Programming: 25th International Conference, ICLP 2009, Pasadena, CA, USA, July 14-17, 2009, Proceedings (pp. 160–174). Springer. https://doi.org/10.1007/978-3-642-02846-5_17