Schwiegk, S., Werth, M., Leisen, J., Wegner, G., & Spiess, H. W. (1993). ROTATIONAL-DYNAMICS OF SUBSTITUTED PHTHALOCYANINATOPOLYSILOXANES AS MEASURED BY 2D SOLID-STATE NMR-SPECTROSCOPY. Acta Polymerica, 44(1), 31-38. doi:10.1002/actp.1993.010440105.