Thiesen, L. A., Schmidt, D., Pinheiro, M. V. M., Holz, E., Altissimo, B. S. and Holz, E. (2019) “Essential oil of Lippia alba (Mill.) N.E.Br. influences the germination, vigor and emergence of lettuce seeds”, Revista Colombiana de Ciencias Hortícolas, 13(3), pp. 416–425. doi: 10.17584/rcch.2019v13i3.8033.