by Jean Jacques Laffont | .
by A.H. Gordon | .
by A. Lima-De-Faria | .
by Work, T.S | Work, E.
by Gunther L. Eichhorn | Luigi G. Marzilli.
by John A. Jacouez | .
by G. Allen | .
by Kurt Wuthrich | .
by P. Cohen | .
by Tsoo E. King | .
by Theil,Henri | .
by Theil,H | .
by Johansen,Leif | .
by Henri Theil | .
by Anders Karlqvist | .
by Janos Kornai | .
by Claes -Heuric Siven | .
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