B. Pinzón, R. Montenegro, and E. Santamaría, “EFFECT OF THE REDUCTION OF THE OCUPATION PERIOD IN A BEEF CATTLE PRODUCTION SYSTEM BASED ON Brachiaria decumbens CV. SEÑAL. GUALACA, PANAMA. 2001-2003.”, ciencia-agropecuaria, no. 17, pp. 31-42, Oct. 2004.