Vert, M.; Doi, Y.; Hellwich, K. H.; Hess, M.; Hodge, P.; Kubisa, P.; Rinaudo, M.; Schué, F. O. Terminology for biorelated polymers and applications (IUPAC Recommendations 2012). Pure and Applied Chemistry. 2012, 84 (2): 377 410. S2CID 98107080. doi:10.1351/PAC-REC-10-12-04.
Alemán, J. V.; Chadwick, A. V.; He, J.; Hess, M.; Horie, K.; Jones, R. G.; Kratochvíl, P.; Meisel, I.; Mita, I.; Moad, G.; Penczek, S.; Stepto, R. F. T. Definitions of terms relating to the structure and processing of sols, gels, networks, and inorganic-organic hybrid materials (IUPAC Recommendations 2007). Pure and Applied Chemistry. 1 January 2007, 79 (10): 1801–1829. S2CID 97620232. doi:10.1351/pac200779101801.