![book Energy-Efficiency Upgrades: Principles, Details, Examples](/covers/files_170/3994000/7eace0807f0d56e4fb3a02cfe277379c-d.jpg)
- Author: Clemens Richarz, Christina Schulz, Friedemann Zeitler
- Language: English
- Year: 2012
![book Energy efficiency refurbishments: Principles, Details, Case studies](/covers/files_170/3941000/e674dca281c731541c2058c52a63f1c6-d.jpg)
- Author: Clemens Richarz, Christina Schulz
- Language: English
- Year: 2013
![book Energetische Sanierung: Grundlagen, Details, Beispiele](/covers/files_170/3941000/5ea02834250452329802ffc36a8a15e1-d.jpg)
- Author: Clemens Richarz, Christina Schulz
- Language: German
- Year: 2012
![book Energy-Efficiency Upgrades : Principles, Details, Examples](/covers/files_170/3887000/409de11cd99c54534ef07264bc4a85c9-d.jpg)
- Author: Clemens Richarz, Christina Schulz, Friedemann Zeitler
- Language: English
- Year: 2007
![book Energy Efficiency Refurbishments: Principles, Details, Case Studies](/covers/files_170/1578000/4e0f7c5dc3fe154e13127932b34d48fc-d.jpg)
- Author: Clemens Richarz Christina Schulz
- Language: English
- Year: 2013