Conformation of Azobenzene-Modified Poly(α-L-Glutamate)(AZOPLGA) in Thin Films: Solid State NMR Studies#. - Wu, Xiaodong; Yang, Suizhou; Samuelson, LynneA.; Cholli, AshokL.; Kumar, Jayant (Journal of Macromolecular Science: Pure & Applied Chemistry, 2004)