00481cam a2200193 450000500170000099900130001724500480003002000050007810000520008304400050013525000050014004100080014530000050015350000050015883000050016326000090016808200070017795201030018420260711133820.0 c547d547 aOpciones energeticas antes del año 2000b a aBergman, ElihuBethe, Hans A. Marshak, Robert E. a a aspa a a v abc ab 001040708CGaBCbBCd2010-01-01i003172l0o / p003172r2026-07-11 13:38:20t1w2026-07-11yBK