1. Abiteboul, S., Hull, R., Vianu, V.: Foundations of Databases. Addison-Wesley (1995)
2. Benzaken, V., Contejean, E., Dumbrava, S.: A Relational Library (2013),
http://datacert.lri.fr/esop/html/Datacert.AdditionalMaterial.html
3. Chlipala, A., Malecha, J.G., Morrisett, G., Shinnar, A., Wisnesky, R.: Effective interactive proofs for higher-order imperative programs. In: Hutton, G., Tolmach, A.P. (eds.) ICFP, pp. 79–90. ACM (2009)
4. Filliâtre, J.-C., Paskevich, A.: Why3 - where programs meet provers. In: Felleisen, M., Gardner, P. (eds.) ESOP 2013. LNCS, vol. 7792, pp. 125–128. Springer, Heidelberg (2013)
5. Gonzalia, C.: Relations in Dependent Type Theory. Ph.D. thesis, Chalmers Göteborg University (2006)