Murga-Orrillo, H.; Irigoin-Aguilar, J. M.; Hilares-Vargas, S.; Bardales-Lozano, R. M.; Lobo, F. de A. Fertilizers and Organic Covers, Slow Release Nutrient Sources in the Production of Multiple Harvest Swiss Chard. Rev. Ciênc. Agrovet. 2019, 18, 380-384.