TY  - SER
AU  - Abou El Naga, H. H. Mohammad M
TI  - Effects of viscisity index improves on determination of iron in used multigrade oils
PY  - 1998///
KW  - Regression Equation
KW  - Matrix Interference
KW  - Worn Oils
KW  - Atomic Absorption Spectroscop
ER  -