Langer Eugen (Spanish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Langer Eugen" in Spanish language version.

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archive.org

Kuehn y Mattner, 2003, p. 50. Kuehn, Michael; Mattner, Dirk (2003). «Solar Concepts for Building». En: Christian Schittich (Ed.). Solar Architecture: Strategies, Visions, Concepts (en inglés) (Walter de Gruyter): 38-56. ISBN 3-7643-0747-1.