000 00330nam a2200121Ia 4500
008 160523s9999 xx 000 0 und d
020 _a0-86341-123-1
100 _aRyan, H. M.
245 _aSF6 switchgear
260 _aLondon
_bPeter Peregrinus Ltd.
_c1989
300 _aviii, 201p.
490 _aIEE power engineering series; no. 10
999 _c28217
_d28217