1- Sieffert, N.; Varnek, A.
“ Solvent eXtraction Database Internet : A tool for the Acquisition, Storage, Organisation and Retrieval of Information for Solvent Extraction. “
1^st Database meeting of the “PARIS” group.
7-8^th April 2004. Strasbourg, France.

2- Sieffert, N.; Wipff, G.
“ Cs⁺/Na⁺ Extraction by Calix[4]crown-6 to a Room Temperature Ionic Liquid : A Molecular Dynamics Study. ”
International Summer School “ Supramolecular Systems in Chemistry and Biology. ”
25-29^th September 2006. Tuapse, Russia.

3 - Sieffert, N.; Wipff, G.
“Importance of interfacial adsorption in the biphasic hydroformylation of higher olefins promoted by cyclodextrins: a Molecular Dynamics study at the decene – water interface.”
Congrès du GGMM (“Groupe Graphisme et Modélisation Moléculaire”).
2-4^th May 2007. Autrans, France.

4 - Sieffert, N.; Bühl, M.; Wipff, G.
“ Uranyl Complexation by Fluoride in Aqueous Solution: A Density Functional Study ”
Universities of Scotland Inorganic Conference.
3^rd September 2009. Heriot-Watt University, Edinburgh, United Kingdom.

5 - Sieffert, N.; Bühl, M.; Wipff, G.
“ Water versus acetonitrile coordination to uranyl. Density functional study of cooperative polarization effects in solution ”
4^th Coordination Chemistry in Rhone-Alpes conference.
7^th April 2011. Lyon, France.