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008 160509s9999 xx 000 0 und d
020 _a0028-0836
100 _aNature
245 _aNature : 1979 : Volume 280(Jul-Aug) : Shelf 7.6
260 _bNature Publishing Group
_c1979
300 _a852p.
650 _aNature
999 _c2210
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