L. Almodóvar-Vega, C. D. Guzmán-Pérez, and N. Semidey-Laracuente, “ALLELOPATHIC EFFECTS OF SEVEN WEED SPECIES ON PUMPKIN (CUCURBITA MOSCHATA) UNDER GREENHOUSE CONDITIONS”, JAUPR, vol. 72, no. 3, pp. 491–493, Jul. 1988.