Lacroix D., Prado S., Kamoga D., Kasenene J., Zirah S. & Bodo B., January 2012 — Unprecedented occurrence of isoaspartic acid in a plant cyclopeptide. Organic Letters vol. 14, n° 2, p. 576-579 ISSN 1523-7060 https://dx.doi.org/10.1021/Ol203190f
