1. Identification of Oil Spill Observed by “KVLafjord,”;Almas;SINTEF report STF66 F01178,2001
2. Compositional changes of aromatic steroid hydrocarbons in naturally weathered oil residues in the Egyptian western desert;Barakat;Environ-mental Forensics,2002
3. Integrated method-ology for forensic oil spill identification;Christensen;Envi-ronmental Science & Technology,2004
4. Christensen, J.H. and G. Tomasi, Multivariate statistical methods for petroleum hydrocarbon fingerprinting and spill source identification, Chapter 9, this volume
5. Characteristic Features of Different Oil Types in Oil Spill Identification;Dahlmann,2003