- Author: Michael Hackl (ed.) Christian Danz (ed.)
- Language: German
- Year: 2017
- Author: Utho Creusen Birte Gall Oliver Hackl (auth.)
- Language: German
- Year: 2017
- Author: Christoph M. Hackl (auth.)
- Language: English
- Year: 2017
- Author: Max Kaser Karl Hackl
- Language: German
- Year: 1996
- Author: Sergio Conti Klaus Hackl (eds.)
- Language: English
- Year: 2015
- Author: Christoph Hackl (auth.)
- Language: English
- Year: 2014
- Author: Oswin Aichholzer Thomas Hackl Birgit Vogtenhuber (auth.) Alberto Márquez Pedro Ramos Jorge Urrutia (eds.)
- Language: English
- Year: 2012
- Author: Oliver Hackl (auth.)
- Language: German
- Year: 1998