000 00267nam a2200121Ia 4500
003 LDD
040 _cLDD
041 _aen
245 0 _aPhysics Today
260 _aAmerican Instt. of Physics
_bNew York
_c1 Sep-31 Dec,1993
362 _a46-46
_b09-Dec
942 _2ddc
_cJ
999 _c179904
_d179904