000 00333nam a2200097Ia 4500
008 220204s9999 xx 000 0 und d
082 _aNR:62:678.06
_bPRO;1
245 0 _aProceedings of the rubber in engineering conference held at the Institution of Electrical engineers, London, Sept 1956
260 _aLondon
_bNRDB
_c1957
942 _cBK
999 _c20170
_d20170