| 000 | 00331nam a2200121Ia 4500 | ||
|---|---|---|---|
| 001 | MPKV057611 | ||
| 008 | 120911s9999 xx 000 0 und d | ||
| 082 | _a500 | ||
| 245 |
_aNature Vol.254 No.5495-5502 _c; |
||
| 246 | _aNature Vol.254 No.5495-5502 | ||
| 260 |
_aLondon _bMac Millan Journals Ltd. _c1975 |
||
| 650 | _aPure Science | ||
| 999 |
_c55601 _d55601 |
||