External StudiesReport "Salud, espacios, personas" (H.A.U.S. & GBCe)Arup office transformed in tuneable light studyBarcelona hospital features ‘spectrally-tuned’ lighting"Lighting and Emergency Dept. Clinician Wellness and Performance Improvement" (study by Octavio L. Perez)"Arbitrary spectral matching using multi-LED lighting systems", by Ledmotive"Melanopsin contributions to non-visual and visual function", by Manuel Spitschan