academic article

• Comparison of Electron Ionization and Fast Atom Bombardment - Mass Spectrometry for the Determination of Nickel, Vanadyl, and Free - base Porphyrins.  Org. Geochem..  14:193-202. 1989
• Evaluation of Residual Fuel Oil Standard Reference Materials as Trace Element Standards.  Radioanal and Nuclear Chem..  91:361-368. 1985