Sorensen, S. O., Pauly, M., Bush, M., Skjot, M., McCann, M. C., Borkhardt, B., et al. (2000). Pectin engineering: Modification of potato pectin by in vivo expression of an endo-1,4-beta-D-galactanase. Proceedings of the National Academy of Sciences of the United States of America, 97(13), 7639-7644. doi:10.1073/pnas.130568297.