00283nam a2200121Ia 45000030006000000080041000060400015000471000016000622450045000782600009001235460012001320050017001440STCL150530s9999 xx 000 0 und d aSTCLcSTCL aPiel,J.; Ed aAcientific American Vol-266 January 1992 c1992 aEnglish20220125165909.0