Lababidi, S.; Schrader, W. Online normal-phase high-performance liquid chromatography/Fourier transform ion cyclotron resonance mass spectrometry: Effects of different ionization methods on the characterization of highly complex crude oil mixtures. Rapid Communications in Mass Spectrometry 2014, 28, 1345–1352.

Lababidi, S.; Panda, S. K.; Andersson, J. T.; Schrader, W. Direct Coupling of Normal-Phase High-Performance Liquid Chromatography to Atmospheric Pressure Laser Ionization Fourier Transform Ion Cyclotron Resonance Mass Spectrometry for the Characterization of Crude Oil. Analytical Chemistry 2013, 85, 9478–9485.

Lababidi, S.; Panda, S. K.; Andersson, J. T.; Schrader, W. Deep Well Deposits: Effects of Extraction on Mass Spectrometric Results. Energy & Fuels 2013, 27, 1236–1245.

Gaspar, A.; Zellermann, E.; Lababidi, S.; Reece, J.; Schrader, W. Characterization of Saturates, Aromatics, Resins, and Asphaltenes Heavy Crude Oil Fractions by Atmospheric Pressure Laser Ionization Fourier Transform Ion Cyclotron Resonance Mass Spectrometry. Energy & Fuels 2012, 26, 3481–3487.

Gaspar, A.; Zellermann, E.; Lababidi, S.; Reece, J.; Schrader, W. Impact of Different Ionization Methods on the Molecular Assignments of Asphaltenes by FT-ICR Mass Spectrometry. Analytical Chemistry 2012, 84, 5257–5267.

Lababidi, S. Effect of Sample Preparation on the Characterization of Crude Oil and its Complex Fractions by High Resolution Mass Spectrometery. Doktorarbeit, Universität Duisburg-Essen, Duisburg, Essen, 2013.