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008 160509s9999 xx 000 0 und d
020 _a0028-0836
100 _aNature
245 _aNature : 1989 : Volume 339(May-Jun) : Shelf 15.3
260 _bNature Publishing Group
_c1989
300 _a726p.
650 _aNature
999 _c4990
_d4990