Cosmic Research · 1967 · 11 citations · 0 references
AgricultureEarth SciencesSoil SciencesPlanetary GeologySoil MechanicsSoil PhysicsLunar GeologyShear StrengthShear Strength Of SoilsSoil DensitySoil Physical PropertiesSoil TextureLanding Site MonitoringMechanical StrengthMechanical Strength TestingMoisture-density RelationshipsSoil Mechanical StrengthSoil StrengthSurface Layer IntegritySurface Layer Processes