000 00263nam a2200121Ia 4500
008 161118s2016 xx 000 0 und d
082 _a371.335 R2B5
100 _aRamshaw, H. G.
245 0 _aBlack-board Work.
260 _c1963
300 _a78p
942 _2ddc
999 _c19614
_d19614