00566nam a2200169Ia 4500008005200000082001600052100001700068245007400085260003300159300001700192500004600209504001900255650001700274650004500291650003000336700003000366200103s     1977      ||||xx |||||||||||||| ||und||  a621.31bKOS  aKostenko, M. 0aElectrical machines: direct current machines and transformers, vol. 1  bMir Publishersc1977aMoscow  a598 p.: ill.  aTranslated from Russian by Chernukhin, A.  aIncludes index  aD.C. machine  aEnergy losses and efficiency of machines  aDirect current generators  aPiotrovsky, L.eCo-author