State-space approach for evaluating the soil-plant-atmosphere system - Timm, Luis Carlos; Reichardt, Klaus; Oliveira, Julio Cesar Martins de; Cássaro, Fabio Augusto Meira; Tominaga, Tania Toyomi; Bacchi, Osny Oliveira Santos; Dourado Neto, Durval (Soil and soil physics in continental environment, 2003)