MUNTEANU, M. F., and L. VLASE. “The Determination of the Iridoids from the Melampyrum Species by Modern Chromatographic Methods”. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, vol. 39, no. 1, May 2011, pp. 79-83, doi:10.15835/nbha3915803.