Sousa, Leandro Fontes de, Magaly de Fatima Correia, Maria Regina da Silva Aragão, and Roberta Everllyn Pereira Ribeiro. 2016. “TROPOSPHERIC DUCTS AND PLANETARY BOUNDARY LAYER STRUCTURE IN THE PETROLINA REGION”. Ciência E Natura 38 (July):318-25. https://doi.org/10.5902/2179460X20243.