000 00387nam a2200109Ia 4500
008 220214s9999 xx 000 0 und d
100 _aOrr WJC
245 0 _aOn the calculation of certain higher-order bethe approximations (British Rubber Producers Research Association Publication No 52)
260 _bTransactions of the Faraday Society, No 271
_c1944
300 _a306-332
942 _cRE
999 _c46212
_d46212