000 00305nam a2200133Ia 4500
008 220216s9999 xx 000 0 und d
100 _aRoberts A D
245 0 _aOptical rubber
260 _bRubber Developments
_c1976
300 _a11-Jul
650 _aOptical rubber
650 _aRubber
942 _cJS
999 _c64409
_d64409