1. L.Musajo, and G.Rodighiero, Mode of photosensitizing action of furocoumarins, in:“Photophysiology”, A.C.Giese, ed., Academic Press, New York (1972), p. 115.
2. M.A.Pathak, D.M.Krämer, and T.B.Fitzpatrick, Photobiology and photochemistry of furocoumarins (psoralens), in:“Sunlight and Man”, M.A.Pathak, L.C.Harber, M.Seiji, and A.Kukita, eds., University of Tokyo Press, Tokyo (1974), p. 335.
3. B.R.Scott, M.A.Pathak, and G.R.Mohn, Molecular and genetic basis of furocoumarin reactions, Mutat.Research 39: 29 (1976).
4. H.Thoms, The constitution of xanthotoxin and its relationship to bergapten, Ber.Deut.Chem.Gesellsch. 44: 3325 (1911).
5. F.Späth, Die natürliche Cumarine, Chem.Ber. 70: 1137 (1937).