University of Ankara, Turkey. Prof. Gencer since 15 years.
Beihang University, Beijing, China. Prof. Cong since 10 years.
USTO, Oran, Algeria. Collaboration with Professor Ferhat. Since more than 35 years ago, Prof. Ferhat is a friend and collaborator… and we are still fiends and collaborators !
Institute of Soil Science at BUKO, Vienna, Austria. Collaboration with Prof. Daniel Tunega since 16 years.
University of Uppsala, collaboration with Prof. Ahuja since 20 years ago.
KTH-Stockholm. Collaboration with Prof. Belonoshko since around 15 years.
University of Stnoy Brooks, NY, USA. Collaboration with Prof. Oganov, since 12 years.
University of York, UK. Collaboration with Prof. Probert since 12 years.