000 00306nam a2200121Ia 4500
008 170912s9999 xx 000 0 und d
082 _a530 A G/P
100 _aA GROUP OF AUTHORS
245 0 _aPHYSICS
260 _bNATIONAL COUNCIL OF EDUCATION RESEARCH ANDTRAINING
_c1988
300 _a193
942 _cTB
999 _c29871
_d29871