000 00248nam a22001097a 4500
003 OSt
008 231229b |||||||| |||| 00| 0 eng d
082 _aP574.8732
_bN90
245 _aNucleic Acids Research - Vol. 9
260 _c1981
942 _2ddc
_cBK
999 _c35349
_d35349