1. Balbes, R., Dwinger, P.: Distributive Lattices. University of Missouri Press (1974)
2. Berge, C., Ghouila-Houri, A.: Programming, Games and Transportation Networks. Wiley, Methuen (1965)
3. Lecture Notes in Computer Science;R Berghammer,1998
4. Berghammer, R., Rusinowska, A., de Swart, H.: Computing tournament solutions using relation algebra and RelView. Eur. J. Oper. Res. 226(3), 636–645 (2013)
5. Birkhoff, G.: Lattice Theory, Colloquium Publications, vol. XXV, 3rd edn., American Mathematical Society (1967)