1. (1) F. Perrin: “La fluorescence des solutions; induction moléculaire. -polarisation; et durée d'émission. -photochimie”, Ann. Phys. Sér.10, Vol.12, pp.169-275 (1929)
2. (2) S. Boudin: “Phosphorescence des solutions glycériques d'éosine influence des iodures”, J. Chim. Phys. Phys. -Chim. Biol., Vol.27, pp.285-290 (1930)
3. (3) C. A. Parker and C. G. Hatchard; “Triplet-singlet emission in fluid solutions. Phosphorescence of eosin”, Trans. Faraday Soc., Vol.57, pp.1894-1911 (1961)
4. (4) C. A. Parker and C. G. Hatchard: “Delayed fluorescence from solutions of anthracene and phenanthrene”, Proc. R. Soc. Lond., Ser. A, Math. Phys. Sci., Vol.269, pp.574-584 (1962)
5. (5) A. Endo, et al.: “Thermally Activated Delayed Fluorescence from Sn4+─Porphyrin Complexes and Their Application to Organic Light Emitting Diodes─A Novel Mechanism for Electroluminescence”, Adv. Mater., Vol.21, pp.4802-4806 (2009)