000 00242nam a2200085Ia 4500
008 180131b1983 xxu||||| |||| 00| 0 eng d
080 _a
_b
100 _a
245 _aIeee: 00269 - 1983; Method For Measuring Transmission Performance Of Telephone Sets
260 _a
_bIEEE
_c1983
999 _c50214
_d50214