1. give detailed design and engineering explanations, complete with checklists, examples and exercises (in German);Eder,2006
2. give wide information on plant components (in English);Deublein,2011
3. offer broad information on plant components (in English);Seadi,2008
4. gives details on technology, plant sizing, costs and regulatory framework;Cla publication 49,2009
5. present technical data and descriptions of frequent damages and rehabilitation possibilities (in German and French);Görisch,2006