Tzoraki, O., Amaxidis, G., Skoulikidis, N., and Nikolaidis, N.P. 2004. In-Stream Geochemical Processes of Temporary Rivers - Krathis River Case Study. Conference Proceedings on Restoration and Protection of the Environment VII, June 28 - July 1, Mykonos, Greece.

Tyrovola K., Nikolaidis, N.P., and Veranis, N., 2004. Arsnic Removal From Groundwater Using Zero Valent Iron - Pilot Application in Geothermal Regions. Conference Proceedings on Restoration and Protection of the Environment VII, June 28 - July 1, Mykonos, Greece.

Nikolaidis, N.P., 2003. Environmental Engineering Curriculum Enhancement at the Technical University of Crete, Greece - A Case Study. E3-International Conference on Environmental Engineering Education, September 25-27, Zurich.

Skoulikidis N., N.P. Nikolaidis, and G. Kostopoulou, 2002. A Pressure - Impact Methodology Applied in Acheloos River Basin. 12th Seminar for the Protection of the Environment - Chemistry and Management of Water Ecosystems. December 2-5, Thessaloniki, Greece.

Nikolaidis, N.P., 2002. Treatment of Arsenic Contaminated Groundwater Using Iron Filings: Field Experiments. Conference Proceedings on Restoration and Protection of the Environment VI, July 1-5, Skiathos, Greece.

Skoulikidis, N., E. Zagana, N.P. Nikolaidis, and Th. Drossos, 2002. Nutrient Contribution of Agriculture in the Lower Acheloos Basin. Conference Proceedings on Restoration and Protection of the Environment VI, July 1-5, Skiathos, Greece.

Meladiotis, I., N. Veranis, and N.P. Nikolaidis, 2002. Arsenic Contamination in Central Macedonia, Northern Greece: Extent of the Problem and Potential Solutions. Conference Proceedings on Restoration and Protection of the Environment VI, July 1-5, Skiathos, Greece.

Vlassopoulos, D., J. Pochatila, A. Lundquist, C.B. Andrews, M.T., Rafferty, K. Chiang, D. Sorel and N.P. Nikolaidis, 2002. An Elemental Iron Reactor for Arsenic Removal From Groundwater. Proceedings of 3rd International Conference on Remediation of Chlorinated and Recalcitrant Compounds, May 20-23, Monterey, CA.

Luo, J., N.W. Garrick, N.P. Nikolaidis, B. Boulanger, 2002. A Portable Method to Determine Chloride Concentration in Roadway Pavements. Conference Proceedings of 81th Annual Meeting of the Transportation Research Board, Washington, D.C.

Michels T. H., B. Boulanger, and N.P. Nikolaidis, 2002. Copper Roof Stormwater Runoff - Corrosion and the Environment. CORROSION 2002 Conference Proceedings, Paper 02225, Houston, Texas.

Skoulikidis, N., N.P. Nikolaidis, E. Zagana, and P. Pergialiotis, 2001. Agricultural Contribution of Pollution in the Lower Acheloos River Basin: Methodology and First Results. Δελτίο της Eλληνικής Γεωλογικής Εταιρίας, Τόμος/Volume XXXIV, No 5, pp. 1951 - 1957, Athens, Greece (in Greek).

Nikolaidis, N.P., and Hellerich, L.A., 2001. Natural restoration of heavy metal contaminated soils: The role of interfacial processes. Ground Water Quality 2001 Conference Proceedings, June 17-21, Sheffield University, U.K.

Nikolaidis, N.P., and B. Boulanger, 2000. Mobility and Aquatic Toxicity of Copper in an Urban Watershed. Conference on Restoration and Protection of the Environment V, July 1-5, Thassos, Greece.

Boulanger, B., N. P. Nikolaidis, R. Carley, and C. Perkins, 1999. Evaluation of the Hydrologic and Chemical Mass Balances of Copper Within an Urban Watershed. Conference Proceedings, 31st Mid-Atlantic Industrial and Hazardous Waste Conference, June 20-23, Storrs, CT.

Hellerich, L.A., C.R. Johnson, N. P. Nikolaidis, and P.M. Gschwend, 1999. Modeling of Bromide in a Single-Well Injection-Withdrawal Experiment. Conference Proceedings, 31st Mid-Atlantic Industrial and Hazardous Waste Conference, June 20-23, Storrs, CT.

Dobbs, G.M., R.E. Post, and N. P. Nikolaidis, 1999. A Site Assessment Methodology for the Characterization of Mixed Organics and Redox Sensitive Heavy Metal Plumes. Conference Proceedings, 31st Mid-Atlantic Industrial and Hazardous Waste Conference, June 20-23, Storrs, CT.

Lackovic, J. A., N. P. Nikolaidis, and G.M. Dobbs, 1999. Redox-Sensitive Mobility of Arsenic in Proximity to a Municipal Landfill. Conference Proceedings, 31st Mid-Atlantic Industrial and Hazardous Waste Conference, June 20-23, Storrs, CT.

Hellerich, L.A., S. Seymour, and N. P. Nikolaidis, 1999. Modeling the Mobility of Cadmium in Soils. Conference Proceedings, 31st Mid-Atlantic Industrial and Hazardous Waste Conference, June 20-23, Storrs, CT.

Lackovic, J. A. and N. P. Nikolaidis, 1998. Innovative Arsenic Remediation Technology (AsRT) for Ground Water, Drinking Water and Waste Streams. Conference Proceedings, 30th Mid-Atlantic Industrial and Hazardous Waste Conference, July 12-15, Philadelphia, PA.

Hellerich, L.A., N.P. Nikolaidis, and J.A. Lackovic, 1998. A Framework for Developing Site-Specific Mobility Based Cleanup Standards for Heavy Metal Contaminated Soils. Conference Proceedings, 30th Mid-Atlantic Industrial and Hazardous Waste Conference, July 12-15, Philadelphia, PA.

Bruel, R., N.P. Nikolaidis, and R.P. Long, 1998. Mobility and Remediation of Lead From Shooting range Soils. Conference Proceedings, 30th Mid-Atlantic Industrial and Hazardous Waste Conference, July 12-15, Philadelphia, PA.

Nikolaidis, N.P., and J.A. Lackovic, 1998. Development and Application of a Conceptual Site Model for Evaluating Contaminant Mobility.Proceedings,International Conference on "Restoration and Protection of the Environment IV", Ed: G.P. Korfiatis, Chalkidiki, Greece, July 1-4.

Nikolaidis, N.P., L.M. Deschaine, M.J. Ades, and H. Shen, 1997. Simulation of Transport of Heavy Metals in Groundwater Systems. Proceedings of the 1997 Simulation MultiConference, The Society for Computer Simulation International, April 6-10, Atlanta, GA, USA.

Hu, Hsien-Lun, Nikolaidis, N.P.. and Grasso, D., 1995. Inhibition of Nickel Precipitation by Gluconate. Proceedings of the International Conference of Industrial Waste Minimization '95, Water Environment Federation, Nov. 25-29, Taipei, Taiwan, pp. 809-820.

Hu, Hsien-Lun, Nikolaidis, N.P.. and Grasso, D., 1995. Inhibition of Nickel Precipitation by Organic Ligands. Proceedings of the 50th Purdue Industrial Waste Conference, Purdue University, Purdue, Indiana, May 8-10, Lewis Publishers.

Shen, H., Yang, X. and N.P. Nikolaidis, 1994. Multigrid Simulation of the Transport of Multicomponent Solute in Groundwater. Proceedings of the 1994 ASAE/ASCE Summer International Meeting, June 19-22, Hyatt Regency Crown Center, Kansas City, MO, pp 13.

Koussouris, T., Nikolaidis, N.P., Nikolaidis, V.S., and Hu, H. 1992. Growth Characteristics and Control of Zebra Mussel in the Water Supply System of Agrinio City, Greece. Proceedings of the 1992 Annual Symposium of the Organization KRIKOS on " Remediation and Protection of the Environment During the Decade of '90", Eds: G.P. Korfiatis, T. Dermatas, and A.C. Dimitrakopoulos, Thessaloniki, Greece, August 19-21, pp. 69-79, 1992.