000 00305nam a2200109Ia 4500
008 160509s9999 xx 000 0 und d
020 _a0036-8733
245 _aScientific American: 2004: Vol.291(1-6): Shelf 23.4
260 _bScientific American Inc.
_c2004
300 _a600p.
650 _aScientific American
999 _c8597
_d8597