00887nam0-22003131i-450-99000049746040332120080402091722.00-19-859328-7000049746FED01000049746(Aleph)000049746FED0100004974620020821d1981----km-y0itay50------baenga-------001yyEnergy methods in electromagnetismP. HammondOxfordClarendon Press1981180 p.ill.24 cmMonographs in electrical and electronic engineeringElettromagnetismo537Hammond,Percy28219ITUNINARICAUNIMARCBK99000049746040332110 C I 303237 DEEDINELDINELEnergy methods in electromagnetism333130UNINA