000 00392nam a2200133Ia 4500
008 170101s1981 xx 000 0 und d
041 _aEnglish
100 _aJOHN S RIGDEN
245 0 _aAMERICAN JOURNAL OF PHYSICS
260 _aNEW YORK USA
_bAMERICAN ASSOCIATION OF PHYSICS TEACHERS & INSTITUTE
_c1981
300 _a192
_ePrint
653 _aAMERICAN JOURNAL OF PHYSICS
942 _2ddc
_cJR
999 _c184892
_d184892