1. The Spontaneous Formation of Amides. The mechanism of lactam
formation from 3(2-aminophenyl)propionic acid.
P.Camilleri, R.Ellul, A.J.Kirby & T.Mujahid.
J.Chem.Soc., Perkin II, 1617 (1979)

2. The Reaction of Hydrogen Atoms with Methylsilane.
K.Worsdorfer, R.Ellul, P.Potzinger & B.Reimann.
Proceedings of Bunsen Gesellschaft Meeting, Munich, Germany. June 1980.

3. Arrhenius Parameters for the system: (CH3)3SiD2 = (CH3)3SiD + D.
The (CH3)3SiD Bond Dissociation Energy.
R.Ellul, P.Potzinger, B.Reimann and P Camilleri.
Berichte der Bunsen Ges. fur Physikalische Chemie, 85, 407 (1981)

4. Phytochrome Models 6.Conformation control by membrane of Biliverdin
Dimethyl Ester incorporated into Lipid Vesicles.
I.M.Tegmo Larsson, S.E.Braslavsky, S.Culshaw, R.Ellul, C.Nicolau & K.Schaffner.
J.Am.Chem.Soc., 103, 7152 (1981)

5. Photoacoustic Spectra of Biliverdin Dimethyl Ester.
S.E.Braslavsky, R.Ellul, S.Culshaw, I.M.Tegmo Larsson & K.Schaffner.
Proceedings of International Photoacoustic Meeting; Bad Honnef, Germany. February 1981.

6. Normal and Anomalous Emission of Pr and Pfr Phytochrome.
A.R.Holzwarth, S.E.Braslavsky, S.Culshaw, R.Ellul & K.Schaffner.
Proceedings of European Symposium on Light Mediated Plant Development; Bischofsmais, Germany. April 1981.

7. Comparison of Transient Formation in Small and Large Phytochrome.
S.E.Braslavsky, S.Culshaw, R.Ellul & K.Schaffner.
Proceedings of European Symposium on Light Mediated Plant Development; Bischofsmais, Germany. April 1981.

8. Comparison of Fluorescence and Transient Formation in Small and Large Phytochrome.
S.E.Braslavsky, A.R.Holzwarth, S.Culshaw, R.Ellul & K.Schaffner.
Proceedings of Xth International Conference on Photochemistry; Crete, Sept. 1981.

9. Photoprocesses in Biliverdin Dimethyl Ester in Ethanol studied by
Laser Induced Opto-acoustic Spectroscopy.
S.E.Braslavsky, R.Ellul, R.G.Weiss, H.E.Ekabi & K.Schaffner.
Tetrahedron Letters, 39, 1909 (1983)

10. Reaction of Hydrogen Atoms with Hexamethyldisilane.
R.Ellul, P.Potzinger & B.Reimann.
J.Phys.Chem., 88, 2793 (1984)

11. Patents - Polymer Composites - British Petroleum Co. Plc.
Joint Inventors: P.D.Calvert, R.Ellul, B.D.Moyle.
UK First filing application Nr. 86 02318 30th. Jan. 1986.
UK First filing application Nr. 86 12283 20th. May. 1986.

12. Patent - Polymer Composites - British Petroleum Co. Plc.
Joint Inventors: P.D.Calvert, R.Ellul, B.D.Moyle.
UK/European (Second filing) Nr. 87300809.8 29th. Jan. 1987.
Canadian and US Patents also taken out.

13. Second Harmonic Generation by Composite Materials.
P.D.Calvert, R.Ellul & B.D.Moyle.
Journal of Materials Science Letters, 6, 167 (1987)

14. Patent - Polymer Composites - British Petroleum Co. Plc.
Joint Inventors: P.D.Calvert, R.Ellul, B.D.Moyle.
European Patent Specification Nr. 0232 138 B1, 20th. Jan. 1993.

15. Ozone and Airborne Particulate measurements in the Central Mediterrranean.
R Ellul & E. Sinagra
Proceedings of MEDUSE research meeting, Reykjavik, Iceland, September 1996.

16. Analysis of Ozone concentrations over the Maltese islands for
Jan. - Dec. 1997.
R. Ellul and M. Nolle
Atmospheric group research meeting in Karlsruhe, FRG, December 1997.

17. Environmental Impact Statement as relating to Air Quality;
Cirkewwa Harbor Project.
R. Ellul - Report prepared for EMDP/ Planning Authority, Jan. 1998.

18. Environmental Planning Statement as relating to Air Quality for Hot Asphalt Batching Plant/ Bitumen Storage Facilities at Ta' Zuta limits of Dingli, Malta.
R Ellul - Report prepared for EMDP/ Planning Authority, May 1998.

19. Environmental Impact Statement as relating to Air Quality for Rabbitry to be located at Hal Saflieni, Malta.
R Ellul – Report prepared for EMDP/Planning Authority, May 1998.

20. Background Ozone and Carbon Monoxide measurements over the Maltese Islands.
R Ellul, M Nolle, H Gusten, and G Heinrich.
Atmospheric Pollution Seminar, 9th. April 1999, Mgarr, Gozo.

21. Proceedings of the Atmospheric Pollution Seminar held on the 9th. April 1999 at L-Imgarr Hotel, Gozo, Malta
Edited by R Ellul - Malta University Press, March 2000.

22. Preliminary report on proposed Cement plant to be located at Hal Farrug, Malta.
R Ellul - report prepared for EMDP/Steering Committee of local Councils.
June 1999.

23. Environmental impact Assessment as relating to Air Quality for Hot Asphalt Batching Plant to be located in Zejtun.
R Ellul – Report prepared for EMDP/ Planning Authority
February 2000.

24 Detection of long range pollutants from background station at Giordan Lighthouse, Gozo.
Research seminar at Fraunhofer Institute, Garmisch Partenkirchen, Germany.
R. Ellul – May 2000

25. Long Term Background Ozone and Carbon Monoxide Measurements on the Maltese Islands.
M. Nolle, R. Ellul, H. Gusten, and G. Heinrich
Proceedings of 8th European Symposium on the Physico Chemical behaviour of Atmospheric Pollutants. September 2001, Turin, Italy.

26. Long Term Trends of Background Ozone Concentrations in the Central Mediterranean- Diurnal and Seasonal Variations as measured on the island of Gozo.
R. Ellul and M. Nolle
Contribution to TOR Project, Eurotrac Programme Proceedings, Munich, Germany, Dec.2001.

27. Report on Background Ozone and Carbon Monoxide concentrations over the Maltese Islands drawn up for Environment Protection Department. Govt. of Malta.
December 2001
R. Ellul and M. Nolle

28. A Long term study of Background Ozone Concentrations in the Central Mediterranean- Diurnal and Seasonal Variations on the Island of Gozo.
M. Nolle, R. Ellul, G. Heinrich and H. Gusten.
Atmospheric Environment Vol 36 (2002) 1391-1402

29. Constant Flux Layer Approach for Correction of Historical Schoenbein-Type
Ozone Measurements of the Gozo Series from 1884-1900.
Comparison with Present Day Ozone Records on Gozo.
M. Nolle, R. Ellul and H. Gusten
Proceedings of Eurotrac Meeting in Garmisch Partenkirchen, Germany, March 11th-15th, 2002.

30. A Case study of a Recirculated Polluted Air Mass Observed on the Island of Gozo in the Central Mediterranean.
M. Nolle, R. Ellul, S. Nickovic and H. Gusten
Proceedings of IGAC Meeting, Crete, Greece, September 18-20th 2002

31. A GAW Station on the Island of Gozo in the Central Mediterranean.
M. Nolle, R. Ellul, H. Gusten and G. Heinrich
Proceedings of WMO Workshop, Riga, Latvia, May 27-30th 2002.

32. Long Term Trends of Background Ozone concentrations in the Central Mediterranean: Diurnal and seasonal variations measured on the Island of Gozo.
R. Ellul and M. Nolle
Proceedings of the TOR-2, Eurotrac meeting, Moscow, September 2002.

33. Evaluation of long term background ozone and carbon monoxide measurements on the Maltese Islands.
R. Ellul
Seminars held by Nature Trust Malta and Ministry for Gozo, January and March 2002 respectively.
Published as Third paper in “Gozo past and present”, ed. MN Cauchi,
University of Malta Gozo Centre 2002. ISBN 99909-44-04-8.

34. Current state of Research on background pollution in the Mediterranean Basin.
R. Ellul
Seminar held by Cleaner Technology Centre at Corinthia Palace Hotel, Malta October 2002.

35. Long Term Trends of Trace Gas Concentrations in the Central Mediterranean as Measured at the GAW station on the island of Gozo.
R. Ellul and M. Nolle
Tropospheric Ozone Research; EUROTRAC-2 Subproject Final Report edited by A Lindksog,
Published by International Scientific Secretariat, National Research Centre for Environment and Health, Munich, Germany, 2003.

36. Long term trends of Ozone and Carbon Monoxide concentrations in the Central Mediterranean as measured at the GAW (Background) station on the island of Gozo.
R. Ellul and M. Nolle
Report for 2002 submitted to MEPA, January 2003.

37. One year data set of atmospheric deposition of Saharan dust and nutrients at Malta.
M.D. Loye Pilot, N. Mihalopoulos, G. Kouvarakis, Z. Markaki, C. Oikonomou, M. Nolle, R. Ellul.
ADIOS Report to European Commission. Deliverable No. 44. February 2004.

38. Contribution of 1997-2002 data set for Ozone and Carbon monoxide to WMO, WDCGG Data Summary.
R. Ellul and M. Nolle
WDCGG No. 27. GAW Data Volume IV Greenhouse Gases and Other Atmospheric Gases.
Published by Japan Meteorological Agency/ World Meteorological Organization. March 2003.

39. Annual report to MEPA/ EEA regarding ozone occurrences for 2003.
R. Ellul and M. Nolle
January 2004.

40. Contribution of 2003 data set for Ozone to WMO, WDCGG Data summary.
R. Ellul and M. Nolle.
WDCGG No. 28. GAW Data Volume IV Greenhouse Gases and other Atmospheric Gases.
Published by Japan Meteorological Agency/ World Meteorological Organization. March 2004.

41. Intermediate report to MEPA regarding ozone occurrences for January – September 2004.
R. Ellul and M. Saliba.
September 2004.

42. Photosmog episodes on the island of Gozo in the Central Mediterranean - A Case study of a recirculated polluted air mass.
M. Nolle, R. Ellul, S. Nickovic and H. Güsten.
Proceedings of WMO/ GAW Expert workshop on the Quality and Application of European
GAW Measurements. Tutzing, Germany 2-5 November 2004. Published by WMO Secretariat.

43. Contribution of 2004 data set for Ozone, CO and SO2 to WMO WDCGG Data summary.
R. Ellul and M. Saliba.
WDCGG No. 29. GAW Data Volume IV Greenhouse Gases and other Atmospheric Gases.
Published by Japan Meteorological Agency/ World Meteorological Organization March 2005.

44. Rural surface ozone levels in the Eastern Mediterranean (Malta, Greece, Cyprus).
P.D. Kalabokas, G. Kouvarakis, N. Mihalopoulos, R. Ellul, S. Kleanthous and C.C. Repapis.
Proceedings of EGU 2005 Conference, Vienna, April 2005.
Geophysical Research Abstracts, Vol 7, 06252, 2005.

45. A study of historical surface Ozone Measurements (1884-1900) on the island of Gozo in the central Mediterranean.
M. Nolle, R. Ellul, H. Güsten and F. Ventura.
Atmospheric Environment, Vol 39, Issue 30, September 2005, pp 5608-5618.

46. Ozone data set for 2005.
R. Ellul and M. Saliba
Report submitted to MEPA, January 2006.

47. Contribution of 2005 data set for Ozone CO and SO2 to WMO, WDCGG Data summary.
R. Ellul and M. Saliba.
WDCGG No 30. GAW Data Volume IV Greenhouse Gases and other Atmospheric Gases.
Published by Japan Meteorological Agency/ World Meteorological Organization March 2006.

48. An investigation of the factors influencing the rural surface ozone levels in the Eastern
Mediterranean (Malta, Greece, Cyprus).
P.D. Kalabokas, R. Ellul, E. Gerasopoulos, N. Mihalopoulos, S. Kleanthous and C.C. Repapis.
Proceedings of IGAC/ CACGP/ WMO meeting held in Cape Town, South Africa 17th-22nd September 2006.

49. A nine year study of background surface ozone concentrations on the island of Gozo in the Central Mediterranean.
M. Saliba, R. Ellul, H Güsten, L. Camilleri.
Proceedings of IGAC/ CACGP/ WMO meeting held in Cape Town, South Africa 17th-22nd September 2006.

50. Contribution of 2006 data set for Ozone CO and SO2 to WMO, WDCGG Data summary
R. Ellul and M. Saliba.
WDCGG No 31. GAW Data Volume IV Greenhouse Gases and other Atmospheric Gases.
Published by Japan Meteorological Agency/ World Meteorological Organization March 2007