by Karl Esser | Rudolf Kuenen.
by Don R Reynolds | .
by George B Cummins | .
by J F T Spencer | .
by W Wiessner | .
by Edward A Birge | .
by Don J Brenner | Noel R Kriey, James T Staley.
by A Puhler | .
by Mortimer P Starr | .
by M P Starr | .
by Gerhard Gottschalk | .
by J Seeman | .
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