Clay content prediction using spectra data collected from the ground to space platforms in a smallholder tropical area - Bellinaso, Henrique; Silvero, Nélida Elizabet Quinonez; Ruiz, Luis Fernando Chimelo; Amorim, Merilyn Taynara Accorsi; Rosin, Nícolas Augusto; Mendes, Wanderson de Sousa; Sousa, Gabriel Pimenta Barbosa de; Sepulveda, Leno Márcio Araujo; Queiroz, Louise Gunter de; Nanni, Marcos Rafael; Demattê, José Alexandre Melo (Geoderma, 2021)