Excluding Items listed in DBLP. Not including items listed in arXiv either.

1. Jan Bergstra, Sanne Nolst Trenite & Mark van der Zwaag.
   UvA Budget Allocatie Model.
   UvA, PRG Electronic Report, PRG0805 (2008)
   
   
2. J.A. Bergstra & C.A. Middelburg.
   Programming an Interpreter Using Molecular Dynamics.
   Scientific Annals in Computer Science vol. 17, ("Alexandru Ioan Cusa University, of Iasi, Romania" (2007) 47-81
   also available at: www.arxiv.org (cs.LO) id 0801.2226
   
   
3. J.A. Bergstra & C.A. Middelburg.
   Maurer computers for pipelined insruction processing
   Math. Structures in Computer Science (2008) vol. 18 pp. 373-409
   doi:10.1017/S0960129507006548
   
   
4. J.A. Bergstra & P.Klint
   The software invention Cube: a classification scheme for software inventions
   Journal of Intellectual Property Rights. Vol 13, July 2008, pp 293-300.
   also available at: www.arxiv.org (cs.LO) id 0801.2226