Sustainability assessment of intensification levels of brazilian smallholder integrated dairy-crop production systems: an emergy and economic-based decision approach - Luiz, Vitória Toffolo; Nacimento, Rafael Araújo; Rezende, Vanessa Theodoro; Almeida, Taynara Freitas Avelar de; Paz, Juliana Vieira; Giannetti, Biagio Fernando; Gameiro, Augusto Hauber (Sustainability, 2023)