000 00352nam a2200121Ia 4500
001 MPKV111055
008 120911s9999 xx 000 0 und d
082 _a500
245 _aScience Vol 242 Part No.4875-4886
_c;
246 _aScience Vol 100
260 _aWashington
_bAmerican Association for the Advancement of Science
_c1988
650 _aPure Science
999 _c74358
_d74358