Boschi, F., M. Fontanella, L. Calderan, and A. Sbarbati. “Luminescence and Fluorescence of Essential Oils. Fluorescence Imaging in Vivo of Wild Chamomile Oil”. European Journal of Histochemistry, vol. 55, no. 2, June 2011, p. e18, doi:10.4081/ejh.2011.e18.