Stefan Nobbenhuis

The Cosmological Constant Problem, an Inspiration for New Physics

Stefan Nobbenhuis, 2006, gr-qc/0609011.

Invariance under complex transformations and its relevance to the cosmological constant problem

G. Hooft, Stefan Nobbenhuis, 2006, gr-qc/0602076.

Categorizing Different Approaches to the Cosmological Constant Problem

Stefan Nobbenhuis, 2004, gr-qc/0411093.