000 00267nam a2200121Ia 4500
003 LDD
040 _cLDD
041 _aen
245 0 _aPhysics Today
260 _aAmerican Instt. of Physics
_bNew York
_c1 May-31 Aug,1993
362 _a46-46
_b05-Aug
942 _2ddc
_cJ
999 _c179903
_d179903