1. Interval and scale effect algebras;Bennet;Advances in Applied Math.,1997
2. Hilbert Space Operators in Quantum Physics;Blank,2008
3. H. X. Cao, Z. H. Guo, Z. L. Chen and K. L. Zhang: Representation Theory of Effect Algebras, preprint.
4. Observables, states and symmetries in the context of CB-effect algebras;Foulis;Rep. Math. Phys.,2007
5. Effects, observables and symmetries in physics;Foulis;Found. Phys.,2007