Zerefos CS, Tetsis P, Amiridis V, Zerefos CS, Luterbacher J, Eleftheratos K, Gerasopoulos E, Kazadzis S, Papayannis A. Further evidence of important environmental information content in red-to-green ratios as depicted in paintings by great masters. Atmos. Chem. Phys. [Internet]. 2014;14:2987-3015.