@article {49, title = {Regional regolith parameters prediction using the proxy of airborne gamma ray spectrometry}, journal = {Vadoze Zone Journaj}, volume = {12 (4)}, year = {2013}, doi = {10.2136/vzj2013.01.0003}, author = {Martelet, G. and Drufin, S. and Tourliere, B. and Saby, N.P.A. and Perrin, J. and Deparis, J. and Prognon, F. and Jolivet, C. and Rati{\'e}, C. and Arrouays, D.} }