1. Andréka, H., Givant, S.: Coset relation algebras. Algebra Universalis (in press)
2. De Morgan, A.: On the syllogism, no. IV, and on the logic of relations. Trans. Camb. Philos. Soc. 10, 331–358 (1864)
3. Givant, S.: Introduction to Relation Algebras. Springer International Publishing AG, Cham (2017)
4. Givant, S., Andréka, H.: Groups and algebras of relations. Bull. Symb. Logic 8, 38–64 (2002)
5. Givant, S., Andréka, H.: A representation theorem for measurable relation algebras (to appear)