共 5 条
[2]
COLLINS LE, 1954, PHILOS MAG, V45, P283
[3]
HELLENTHAL W, 1959, Z NATURFORSCH, VA 14, P722
[4]
HOFFMAN RW, 1957, P C MAGNETISM MAGNET, P78
[5]
REIMER L, 1956, Z NATURFORSCH, VA 11, P649