TY  - SER
AU  - Heck,R.J.
AU  - Mermuti,A.R.
AU  - Santos,M.C.
TI  - Iron oxides in plinthic soils on sedimentary deposits in northeastern Brazil
KW  - Oxido de Ferro
KW  - Pedologia
KW  - Analise do Solo
KW  - Nordeste
ER  -