共 19 条
[4]
ISMAI JS, 1971, PHYS LETTERS A, V34, P333
[6]
MASON WP, 1958, PHYSICAL ACOUSTICS P
[8]
MONTALVO RA, 1967, THESIS NORTHWESTERN
[9]
MUNDAY BC, 1965, 1964 P INT C MAGN NO, P201