1. Theory of Gear Mesh, Műszaki Könyvkiadó, Budapest (in Hungarian);Litvin,1972
2. Design of pitch cones for face-hobbed hypoid gears;Litvin;ASME J. Mech. Des.,1990
3. A method for inspection of spiral bevel gears in Klingelnberg cyclo-palloid system;Kawasaki,1994
4. Klingelnberg spiral bevel gears with small spiral angles;Kawasaki,1999
5. Manufacturing method for large-sized bevel gears in cyclo-palloid system using multi-axis control and multi-tasking machine tool;Kawasaki,2010