Ralph, J., Hatfield, R. D., Piquemal, J., Yahiaoui, N., Pean, M., Lapierre, C., & Boudet, A. M. (1998). NMR characterization of altered lignins extracted from tobacco plants down-regulated for lignification enzymes cinnamylalcohol dehydrogenase and cinnamoyl-CoA reductase. The National Academy of Sciences.

Ralph, John, Ronald D. Hatfield, Joël Piquemal, Nabila Yahiaoui, Michel Pean, Catherine Lapierre, e Alain M. Boudet. NMR Characterization of Altered Lignins Extracted From Tobacco Plants Down-regulated for Lignification Enzymes Cinnamylalcohol Dehydrogenase and Cinnamoyl-CoA Reductase. The National Academy of Sciences, 1998.

Ralph, John, et al. NMR Characterization of Altered Lignins Extracted From Tobacco Plants Down-regulated for Lignification Enzymes Cinnamylalcohol Dehydrogenase and Cinnamoyl-CoA Reductase. The National Academy of Sciences, 1998.