Brambilla, Telma Regina, Ana Paula Brambilla Constantino, and Pérsio Sandir D´Oliveira. 2008. “Infuence of Nitrogen Fertilization on Yield of Amaranth”. Semina: Ciências Agrárias 29 (4):761-68. https://doi.org/10.5433/1679-0359.2008v29n4p761.