- Author: Peter C. Hartmann
- Language: German
- Year: 1999
Wilde Tiere
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- Author: Gerhard Hartmann Reiner Zieger
- Language: German
- Year: 1983
- Author: Lamar Waldron Thom Hartmann
- Language: English
- Year: 2008
- Author: A. Hartmann
- Language: German
- Year: 2006
- Author: Hartmann F.
- Language: English
- Year: 1989
- Author: Franz Hartmann
- Language: English
- Year: 1997
- Author: Alexander K. Hartmann Heiko Rieger
- Language: German
- Year: 2001
- Author: Stephan Hartmann (ed.) Luc Bovens (ed.) Carl Hoefer (ed.)
- Language: English
- Year: 2008
- Author: Ulrich Gähde Stephan Hartmann
- Language: English
- Year: 2006
