Hultén, Stephan and Mölleryd, Bengt, "Entrepreneurs, Innovations and Market Processes in the Evolution of the Swedish Mobile Telecommunications Industry," Paper presented at the Eighth International Joseph A. Schumpeter Society Conference, 28 June – 1 July 2000. NMT PCS | PrivatelineArchived 2015-09-24 at the Wayback Machine
Hultén, Stephan and Mölleryd, Bengt, "Entrepreneurs, Innovations and Market Processes in the Evolution of the Swedish Mobile Telecommunications Industry," Paper presented at the Eighth International Joseph A. Schumpeter Society Conference, 28 June – 1 July 2000. NMT PCS | PrivatelineArchived 2015-09-24 at the Wayback Machine