000 00360nam a2200121Ia 4500
001 MPKV062275
008 120911s9999 xx 000 0 und d
082 _a500
245 _aScience Vol. 228 No.4695-707
_c;
246 _aScience Vol. 228 No.4695-707
260 _aWashington
_bAmerican Association for the Advancement of Science
_c1985
650 _aPure Science
999 _c60261
_d60261