共 5 条
[1]
SOIL DEFORMATIONS INDUCED BY A MOVING CUTTING BLADE, AN EXPANDING TUBE AND A PENETRATING SPHERE
[J].
JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH,
1972, 17 (04)
:371-&
[2]
GREACEN EL, 1968, 9TH T INT C SOIL SCI, V1, P769
[5]
Vesic A. C., 1972, J SOIL MECH FDN DIV, V98, P265