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    Ballot, A. (2)
    Codd, G.A. (2)
    Kotut, Kiplagat (2)
    Krienitz, L. (2)
    Metcalf, J.S. (2)
    Morrison, L.F. (2)
    Pflugmacher, S. (2)
    Wiegand, C. (2)
    Casper, P. (1)
    Krause, E. (1)