by Tedeschi , H | .
by Thaer , A A | .
by Ursprung, H | .
by Whaley , W G | .
by Bereiter , Hahn , J | .
by Egami , F | .
by Leonid I. Korochkin | .
by H. Ursprung | R. Nothiger.
by W. Nachtigall | .
by Peter V. Booysen | Neil M. Tainton.
by Lake Dillon Colorado | .
by David M. Gates | Rudolf B. Schmert.
by O.W. Heal | D.F. Perkins.
by H.A. Mooney | M. Gordon.
by Francis Dov Por | .
by Hermann Remmert | .
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