Point and imaging spectroscopy in geospatial analysis of soils - Rizzo, Rodnei; Mendes, Wanderson de Souza; Silvero, Nélida Elizabet Quiñonez; Terra, Fabricio da Silva; Dotto, André Carnieletto; Santos, Natasha Valadares dos; Bonfatti, Benito Roberto; Poppiel, Raul Roberto; Demattê, Jose Alexandre Melo (Geospatial technologies for crops and soils, 2021)