共 4 条
[1]
*ANSI NEMA, ANSI NEMA STAND PUBL
[2]
BERNDT MM, 1963, AIEE T POWER APP 3A, V82, P680
[3]
GAFFORD BN, 1959, AIEE T POWER APP 3A, V78, P282
[4]
Williams J.E, 1954, AIEE T 3, V73, P125