Denis BAIZE, Pedologist. Research Director at INRA, SESCPF (Service d’Étude des Sols et de la Carte Pédologique de France) then Soils Research Unit, Orléans, retired.

Slim KADDECHE, Professor at the National Institute of Applied Sciences and Technology, MMA (Materials, Measurements and Applications Research Laboratory), University of Carthage, Tunisia.

Zengyong CHU, Professor at the National University of Defense Technology. Changsha, Hunan, China

Tingju LI, Professor, School of Materials Science and Engineering, Dalian University of Technology, China

Mohamed HANCHANE, Professor of Higher Education, "Territory, Heritage and History" Laboratory, Sidi Mohamed Ben Abdellah University, Fez, Morocco

Jacques BLONDEL, Emeritus Research Director at the CNRS, CEFE, Montpellier