Enderby J E, 1966, Phil. Mag., 14, 961, 10.1080/14786436608244767
Keating D T, 1963, J. Appl. Phys., 34, 923, 10.1063/1.1729563
Longuet-Higgins H C, 1951, Proc. R. Soc., 205, 247, 10.1098/rspa.1951.0028
McAlister S P, 1972, J. Phys. F: Metal. Phys., 2, L51, 10.1088/0305-4608/2/3/005
Woodhead-Galloway J, 1968, J. Phys. C: Solid St. Phys., 1, 1472, 10.1088/0022-3719/1/6/302
Woodhead-Galloway J, 1968, J. Phys. C: Solid St. Phys., 1, 271, 10.1088/0022-3719/1/2/301