- Marius Müller marius.mueller@tutanota.de
- Florian Dobener pyelli@schroedingerscat.org
- Olivier Castany and C. Molinaro Berreman4x4
- Solver2x2 based on Steve Byrnes' tmm
- Mikhail Polyanskiy's refractiveindex.info database and Pavel Dmitriev's pyTMM for his importer script for the database