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by Neef
by Heward, William L.; Heron, Timothy E.; Neef, Nancy A.; et al.
by Neef, Rainer; Adair, Philippe
by Neef, Nancy
by Heidhues, F.; Hermann, L.; Neef, A.; et al.
by Neef, Sonja
by Cappers, Rene T. J.; Neef, Reinder; Bekker, Renee M.
by Max-Neef, Manfred; Smith, Philip B.
by Heidhüs, Franz J.; Herrmann, Ludger; Neef, Andreas; et al.
by Haussermann, Hartmut; Neef, Rainer