Josh Lerner, Yannis Pierrakis, Liam Collins and Albert Bravo Biosca, "Atlantic Drift - Venture Capital performance in the UK and the US, Research report June 2011, see section 4.1
Rapport de recherche de Josh Lerner, Yannis Pierrakis, Liam Collins et Albert Bravo Biosca, «Atlantic Drift - Venture Capital performance in the UK and the US», juin 2011, voir point 4.1