Nam, I.; Uh, D. S.; Oh, C. I.; Lee, J. K.; Oh, J. M.; Kim, J. S. Synthesis and Solubility Study of the Polyamides Containing 4,4’-(9- fluorenylidene)dianiline in the Backbone As an Antireflecting Spin-on Hardmask Materials. Eurasian Chem.-Technol. J. 2007, 9, 39-46.