000
00278nam a22001217a 4500
003
OSt
008
231229b |||||||| |||| 00| 0 eng d
082
_a
P505
_b
P87
245
_a
Proc. of the national academy of science U.S.A.
260
_c
1981
300
_a
78
942
_2
ddc
_c
BK
999
_c
35256
_d
35256