“The germination of bush mint (Hyptis marrubioides EPL.) seeds as a function of harvest stage, light, temperature and duration of storage - doi: 10.4025/actasciagron.v33i4.4611” (2011) Acta Scientiarum. Agronomy, 33(4), p. 709–713. doi:10.4025/actasciagron.v33i4.4611.