000 00257nam a2200109Ia 4500
008 140122s9999 xx 000 0 und d
082 _a574 Langone J
100 _aLangone J J
245 _aMethods in enzymology Vol.74
260 _b
_c1981
942 _cBK
_2ddc
999 _c4357
_d4357