1. The Manaus LBA site;J. Geophys. Res
2. Soil enzymes in a changing environment: Current knowledge and future directions;R G Burns;Soil Biology and Biochemistry,2013
3. Manual for soil and water analysis;P Buurman;Backhuys publishers,1996
4. Root and Rhizosphere Bacterial Phosphatase Activity Varies with Tree Species and Soil Phosphorus Availability in Puerto Rico Tropical Forest;K G Cabugao;Frontiers in Plant Science,1834