- Author: Walter Bernhart, David Francis Urrows
- Language: English
- Year: 2019
On Voice
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- Year: 2015
- Author: Walter Bernhart (editor)
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- Year: 2021
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- Language: English
- Year: 2010
- Author: Werner Wolf Walter Bernhart Andreas Mahler
- Language: English
- Year: 2013
- Author: Walter Bernhart
- Language: English
- Year: 2012