1. School of Geotechnology, Institute of Engineering, Suranaree University of Technology, 111 University Avenue, Mueang District, Nakhon Ratchasima Province, 30000 (Thailand)
2. CR2P (MNHN, CNRS, UPMC-Paris 6, Sorbonne Universités), 4 place Jussieu, T.46-56, E.5, case 104, 75252 Paris cedex 05 (France)
3. Independent researcher