Alexander Osterwalder at the Business of Software 2011 conference By Betsy Weber - https://c1.staticflickr.com/7/6106/6277568714_ba87de6e69_b.jpg, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=72600439
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Image téléchargée par davidgn le Mar 5, 2019
Droits d'auteur: CC BY 2.0