Collect. Czech. Chem. Commun.
1976, 41, 1750-1758
https://doi.org/10.1135/cccc19761750
The real behaviour of cohesionless granular materials undergoing deformation. An experimental technique for measurement of stress-strain distribution in granular solids under Prandtl's boundary conditions
V. Šmíd and J. Novosad