共 9 条
[2]
BERS A, 1974, P IEEE ULTRASONICS S, P778
[3]
CAFARELLA JH, 1974, P IEEE ULTRASONICS S, P216
[7]
GRUDKOWSKI TW, 1974, P ULTRASONICS S, P749
[9]
SMITH JM, 1973, P IEEE ULTRASONICS S, P142