GORDÓN-M., R.; CAMARGO, I.; FRANCO, J.; GONZÁLEZ, A. RAINFALL IMPACT ON THE GRAIN CORN YIELD IN AZUERO REGION, PANAMA, 1995-2003. II. YIELD ANALYSIS AND ITS RELATIONSHIP WITH THE PLANTING DATE. Ciencia Agropecuaria, n. 16, p. 31-44, 7 jun. 2004.