共 11 条
[4]
MOTA, 1971, REV SCI INSTRUM, V42, P1541
[5]
RAJEEV KP, 1991, THESIS INDIAN I SCI
[7]
SRIKANTH H, 1991, IN PRESS CRYOGENICS
[10]
WHITE GK, 1979, EXPT TECHNIQUES LOW, pCH7