1. K. Albrect, K. Jensen & R.M. Shapiro: CPN Palette. A Tool Package Supporting the Use of Coloured Petri Nets. The Petri Net Newsletter, April 1989.
2. K. Jensen: CPN ML. Specification paper for the CPN Palette — Part 1. Meta Software Corporation, Cambridge, Massachusetts, USA, 1989.
3. P. Huber: Hierarchies in Coloured Petri Nets. Specification paper for the CPN Palette — Part 2. Meta Software Corporation, Cambridge, Massachusetts, USA, 1989.
4. K. Jensen and S. Christensen: CPN Editor. Specification paper for the CPN Palette — Part 3. Meta Software Corporation, Cambridge, Massachusetts, USA, 1989.
5. K. Jensen and S. Christensen: CPN Simulator. Specification paper for the CPN Palette — Part 4. Meta Software Corporation, Cambridge, Massachusetts, USA, 1989.