Guedes De Pinho, P., Gonçalves, R. F., Valentão, P., Pereira, D. M., et al. (2009). Volatile composition of Catharanthus roseus (L.) G. Don using solid-phase microextraction and gas chromatography/mass spectrometry. Journal of Pharmaceutical and Biomedical Analysis, 49(3), 674 - 685.