Hans Hoyer
Leutnant Hans Hoyer (20 September 1890 – 15 November 1917) was a German World War I soldier who was decorated as an artilleryman before turning to aviation. As a flyer, he became an ace credited with eight confirmed and three unconfirmed aerial victories before being killed in action while fighting. Provided by Wikipedia
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Published: 1986
Superior document: Enthalten in Festschrift für Winfried Kralik zum 65.Geburtstag ; hrsg. von Walter H. Rechberger ; Rudolf Welser Wien, 1986 S. [215] - 227