- Lausanne (Switzerland)
- found: Author's The tree, c1966.
- found: Something about the author, c2007: v. 179, p. 43-50 (Born January 4, 1941, in Lausanne, Switzerland; Painter, graphic designer, illustrator, film director, publisher, and author)
- 1980-09-03: new
- 2014-07-07: revised