1. Toyn, I., McDermid, J.: CADiZ: An architecture for Z tools and its implementation. Software — Practice and Experience 25, 305–330 (1995)
2. Toyn, I.: CADiZ on-line documentation (2005),
http://www-users.cs.york.ac.uk/~ian/cadiz/
3. ISO/IEC: Information Technology—Z Formal Specification Notation—Syntax, Type System and Semantics , International Standard 13568:2002 (2002),
http://www.iso.org/iso/en/ittf/PubliclyAvailableStandards/c021573_ISO_IEC_13568_2002E.zip
4. The MathWorks: Matlab and Simulink for technical computing (2005),
http://www.mathworks.com/
5. Harel, D.: Statecharts: A visual formalism for complex systems. Science of Computer Programming 8, 231–274 (1987)