Author(s): |
Robert Helbling
|
---|---|
Medium: | journal article |
Language(s): | German |
Published in: | Schweizerische Bauzeitung (1883-1946), 22 January 1921, n. 4, v. 77 |
DOI: | 10.5169/seals-37211 |
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10485413 - Published on:
22/11/2020 - Last updated on:
22/11/2020