000 00351nam a2200121Ia 4500
001 MPKV111583
008 120911s9999 xx 000 0 und d
082 _a500
245 _a Science Vol 238 Part No.4828-34
_c;
246 _aScience Vol 100
260 _aWashington
_bAmerican Association for the Advancement of Science
_c1987
650 _aPure Science
999 _c74881
_d74881