Facts
- Author
- Henri Poincaré
- Language
- German
- Project Gutenberg No.
- 15267
- Released on Project Gutenberg
- March 5, 2005
- Bookshelves
- Mathematics, Physics, DE Sachbuch
- Subjects
- Mathematics, Mathematical physics
- Public domain in the USA
- yes
Sources: Project Gutenberg catalogue (public domain), Wikidata (CC0)