Business model generation : a handbook for visionaries, game changers, and challengers 2026-02-16T06:48:45+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Osterwalder, Alexander (Wiley, 2010)