共 242 条
[46]
COHN EJ, 1944, P AM PHILOS SOC, V88, P159
[47]
COHN EJ, 1946, UNPUB
[48]
The crystal structure of diketopiperazine
[J].
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,
1938, 60
:1598-1604
[49]
DAVIS B D, 1946, Am Sci, V34, P611