Klamt, E., & Beatty, M. T. (2014). Genesis of a soil sequence in the Middle Plateau Region (Planalto Médio) of the State of Rio Grande do Sul. Pesquisa Agropecuaria Brasileira, 7(6), 99–109. https://doi.org/10.1590/S1678-3921.pab1972.v7.17356