References
- K. C. Barraclough, Steelmaking before Bessemer: I Blister Steel (Metals Society, London, 1985).
- K. C. Barraclough, 'Swedish iron and Sheffield steel' History of Technology 12 (1990), 1-39 - originally published in Swedish in A Attman et al., Forsmark och vallonjärnet (Sweden 1987)
- P. W. King, 'The Cartel in Oregrounds Iron' Journal of Industrial History 6(1) (2003), 25-48.
- K-G. Hildebrand, Swedish iron in the seventeenth and eighteenth centuries: export industry before industrialization (Stockholm 1992).
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