00332nam a2200121Ia 450000500170000000800410001704100080005808200150006610000240008124500510010526000460015630000080020220260720174638.0260720s2002    xx            000 0 und d  aeng  a540.1 MASC  aMascarenhas, Ronald  aChem magic-exchanging experiments in chemistry  aMangalorebAssociation of Chemistryc2002  a59p