000 00273nam a2200121 4500
003 OSt
005 20161219152645.0
040 _bENGLISH
082 _a500
245 _aNature:
_binternational weekly journal of science
_p391, no.6666-6668
260 _c1998
942 _2ddc
_cBK
999 _c70843
_d70843