1991, J.-P. Aime, Structural Characterization of Conjugated Solutions, J. L. Brédas, R. Silbey (editors), Conjugated Polymers, Kluwer Academic, page 296
2007, Kirk S. Schanze, Xiaoyong Zhao, 14: Structure-Property Relationships and Applications of Conjugated Polyelectrolytes, Terje A. Skotheim, John R. Reynolds (editors), Conjugated Polymers: Theory, Synthesis, Properties, and Characterization, Handbook of Conducting Polymers, 3rd Edition, Taylor & Francis (CRC Press), page 14-3
2014, Enzo Montoneri, et al., Chapter 4: Food Wastes Conversion to Products for Use in Chemical and Environmental Technology, Material Science and Agriculture, Abbas Kazmi, Peter Shuttleworth (editors), Economic Utilisation of Food Co-Products, Royal Society of Chemistry (RSC Publishing), page 81