共 5 条
[1]
HANSEN D, 1965, ELECTRONICS, V38, P86
[3]
KERKHOF F, 1967, KURZZELTPHYSIK, P498
[4]
KERKHOF F, 1956, GLASTECH BER, V29, P459
[5]
KUPPERS H, 1965, Z ANGEW PHYSIK, V20, P88