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by Herzfeld, Hans; Schütz, Klaus
by Herzfeld, Hans; Real, Willy
by Heinrich, Gerd; Herzfeld, Hans; Dovifat, Emil (CON); et al.
by Prowe, Diethelm; Herzfeld, Hans
by Bu¨sch, Otto; Herzfeld, Hans; Brandt, Willy (CON)
by Herzfeld, Michael
by Wenzel, Stefi; Herzfeld, Hans
by Scholz, Ursula (ADP); Stromayer, Rainald (ADP); Herzfeld, Hans; et al.
by Elvers, Rudolf; Herzfeld, Hans
by Davis, John C.; Herzfeld, Ute Christina