//-->
Provision of two online consumer surveys as support and evidence base to a Commission study : Identifying the maincross-border obstacles to the Digital Single Market and where they matter most ; Final report
(2015)
Learning from Users for Radical Innovation
Lettl, Christoph, (2004)
Users as inventors and developers of radical innovation:An explorative case study analysisin the field of medical technology
Lettl, Christopher, (2004)
Market driven strategy : processes for creating value ; with a new introduction
Day, George S., (1999)
Analysis for strategic market decisions
Day, George S., (1986)
Market driven strategy : processes for creating value
Day, George S., (1990)