J. Lima, M. Traczynski, W. Giufrida, A. Feihrmann, L. Freitas, L. Cardozo-Filho, Modifier-Enhanced Supercritical CO₂ Extraction with GRAS Solvents of Coumarin from Cumaru Seeds (Dipteryx Odorata), Chemical Engineering Transactions. 57 (2017) 1801-1806. doi:10.3303/CET1757301.