(1)
Sales, J. de F.; Pinto, J. E. B. P.; Ferri, P. H.; Silva, F. G.; Oliveira, C. B. A. de; Botrel, P. P. Growth, Production and Chemical Composition of the Essential Oil in Hortelã-Do-Campo (Hyptis Marrubioides Epl.) in Function of the Irradition Level. Semina: Ciênc. Agrár. 2009, 30, 389-396.