000 00311nam a2200121Ia 4500
008 160509s9999 xx 000 0 und d
020 _a0028-0836
100 _aNature
245 _aNature : 1979 : Volume 281(Sep-Oct) : Shelf 15.2
260 _bNature Publishing Group
_c1979
300 _a718p.
650 _aNature
999 _c2211
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