Deloitte & Touche: Access to Finance: Opportunities and Constraints for Business Development and Growth in the West Midlands; (2002), s. 36 og 39; ECOTEC: Advantage Enterprise & Innovation Fund: Analysis of Market Demand (2004), s. 16-18.
Deloitte & Touche: Access to Finance: Opportunities and Constraints for Business Development and Growth in the West Midlands; (2002), p. 36 and 39; ECOTEC: Advantage Enterprise & Innovation Fund: Analysis of Market Demand (2004), p. 16-18.