1. M.C. Shaw,Metal Cutting Principles, Oxford Series on Ad- vanced Manufacturing, 1984
2. I. Time,Resistance of Metals and Woods to Cutting, St. Peters- burg, 1870
3. H. Tresca, Writings on the Machining of Metals,Bull. Soc. d’En- couragement pour l’Industrie Nationale, 1873, p 585–685
4. F.W. Taylor, On the Art of Cutting Metals,Trans. ASME, Vol 28, p31–38
5. V. Piispanen, Theory of Formation of Metal Chips,J. Appl. Phys., Vol 19, 1948, p 876–881