00349nam a2200121Ia 4500008004100000041001200041082001900053100002700072245007700099260002100176300001300197650001700210231217s9999 xx 000 0 und d aEnglish a621.312 KIM.2 aKimbark, Edward Wilson 0aPower system stability V.2: Power circuit breakers and protective relays c1950bJohn Wiley aviii+288 aPower system