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by Lovins, L. Hunter; Wallis, Stewart; Wijkman, Anders; et al.
by Lovins, Amory; Lovins, L. Hunter; Hawken, Paul
by Lovins, L. Hunter; Cohen, Boyd
by Weizsacker, Ernst U. Von; Lovins, Amory B.; Lovins, L. Hunter
by Lovins, L. Hunter; Lovins, Amory; Hawken, Paul
by L. Hunter Lovins
by Hawken, Paul; Lovins, Amory B.; Lovins, L. Hunter