1. Recent developments in seamless steel tube-making
2. 'The making, shaping and treatment of steel', (ed. H. E. McGannon), 9 ed; 1971, Pittsburgh Pa, United States Steel Corp.
3. 'Tube and pipe production'; 1971, London, The Iron and Steel Institute.
4. E. Weber and W. Rudat: Rotirleitungen, Theorie und Praxis, 1967, 40.