Felix Alvarez, R. de C., C. A. Costa Crusciol, J. D. Rodrigues, and A. C. Camarim Alvarez. “Nitrogen Absorption Rate in Highland Rice Cultivars With Different Types of Plants”. Científica, vol. 34, no. 2, Oct. 2008, pp. 162-9, doi:10.15361/1984-5529.2006v34n2p162 - 169.