1. Domingos, P., Richardson, M.: Markov logic: a unifying framework for statistical relational learning. In: Getoor, L., Taskar, B. (eds.) Introduction to Statistical Relational Learning, pp. 339–371. MIT Press, Cambridge (2007)
2. Ferrucci, F., Pacini, G., Satta, G., Sessa, M.I., Tortora, G., Tucci, M., Vitiello, G.: Symbol-relation grammars: a formalism for graphical languages. Inf. Comput. 131(1), 1–46 (1996)
3. Friedman, N., Getoor, L., Koller, D., Pfeffe, A.: Learning probabilistic relational models. In: Proceeding of the International Joint Conference on Artificial Intelligence (IJCAI), pp. 1300–1309 (1999)
4. Genesereth, M.R., Nilsson, N.J.: Logical Foundations of Artificial Intelligence. Morgan Kaufmann, Burlington (1988)
5. Getoor, L., Taskar, B.: Introduction to Statistical Relational Learning. MIT Press, Cambridge (2007)