Isenberg Irvin and Leslie R. B. and Baird Spencer L., jr. and Rosenbluth R. and Bersohn R.: Delayed fluorescence in DNA-acridine dye complexes : [communicated by Albert Szent-Györgyi]. In: Proceedings of the National Academy of Sciences of the United States of America : PNAS, (52) 2. pp. 379-387. (1964)