Rego-Oliveira, L. do V. (2003) “Influence of source and concentration of carbohydrate on shoot growth and rooting of Oncidium varicosum Lindl. (Orchidaceae)”, Semina: Ciências Agrárias, 24(2), pp. 265–272. doi: 10.5433/1679-0359.2003v24n2p265.