Agriculture influences ammonium and soluble reactive phosphorus retention in South American headwater streams - Cunha, Davi Gasparini Fernandes; Finkler, Nícolas Reinaldo; Gómez, Nora; Cochero, Joaquín; Donadelli, Jorge Luis; Saltarelli, Wesley Aparecido; Calijuri, Maria do Carmo; Miwa, Adriana Cristina Poli; Tromboni, Flávia; Dodds, Walter Kennedy; Boëchat, Iola Gonçalves; Gücker, Björn; et al. (Ecohydrology, 2020)