Author:Paul Gruner
Works
[edit]- Elementary geometric representation of the formulas of the special theory of relativity (1921, Wikisource translation)
- An elementary geometrical representation of the transformation formulas of the special theory of relativity (1921, Wikisource translation)
- Graphical representation of the four-dimensional space-time universe (1922, Wikisource translation)
Some or all works by this author are in the public domain in the United States because they were published before January 1, 1929.
This author died in 1957, so works by this author are in the public domain in countries and areas where the copyright term is the author's life plus 66 years or less. These works may be in the public domain in countries and areas with longer native copyright terms that apply the rule of the shorter term to foreign works.
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