Engelhardt R.: A School Day is a School Day, in Richter L., Engelhardt R. (ed.): Life of Science, Learning Lab Denmark, 2002
Engelhardt R.: Finnish Lessons, in Richter L., Engelhardt R. (ed.): Life of Science. Learning Lab Denmark, 2002
Engelhardt R.: A School for the Future, in Richter L., Engelhardt R. (ed.): Life of Science. Learning Lab Denmark, 2002
Engelhardt R.: High Cooperativity as Origin of Pattern Complexity, in: Dynamical Modeling in Biotechnology, ed. Bagnoli F. and Ruffo S., ISBN 981-02-3604-2, World Scientific, (2001)
Engelhardt R.: Vive la difference,
i: Hvordan Mand, eds. Adam Holm,Timme Bisgaard Munk og Mikkel Thelle, Tiderne
Skifter, (2000)