共 5 条
[1]
BEHNKEN H, 1930, ROFO FORTSCHR RONTG, V41, P245
[2]
BRAESTRUP C. B., 1938, RADIOLOGY, V31, P206
[4]
BRAESTRUP CB, 1942, RADIOLOGY, V38, P207
[5]
GLASSER O, 1952, PHYSICAL FOUNDATIONS, P448