Gachet, P.Klubertanz, G.Laloui, L.Vulliet, L.2006-11-092006-11-092006-11-09200310.1520/GTJ11099Jhttps://infoscience.epfl.ch/handle/20.500.14299/235627WOS:0001812619000023245Interface behavior of unsaturated soil with small-scale models and use of image processing techniquestext::journal::journal article::research article