Lenz, B., Schreiber, J., Stark, T., Donhauser, R., Grosshardt, B., Krammer, E., & Heidenreich, S. (2011). Sustainable building services: Principles, systems, concepts (First edition.). Architektur-Dokumentation GmbH & Company KG.
Lua i Stíl Chicago (17ú heag.)Lenz, Bernhard, Jürgen Schreiber, T. Stark, Ralph Donhauser, Bettina Grosshardt, Elisabeth Krammer, agus Sharon Heidenreich. Sustainable Building Services: Principles, Systems, Concepts. First edition. Munich: Architektur-Dokumentation GmbH & Company KG, 2011.
Lua MLA (9ú heag.)Lenz, Bernhard, et al. Sustainable Building Services: Principles, Systems, Concepts. First edition. Architektur-Dokumentation GmbH & Company KG, 2011.
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