Criollo-Escobar, Hernando, et al. “Phenology and Growth of Lulo (Solanum Quitoense Lam) Plants Grafted onto Solanum Hirtum Vahl”. Revista Colombiana De Ciencias Hortícolas, vol. 14, no. 3, Sept. 2020, pp. 291-00, doi:10.17584/rcch.2020v14i3.11005.