1. Design and Application of the Worm Gear;Crosher,2002
2. Design manual for cylindrical worm gearing, ANSI/AGMA 6022-C93, AGMA Standards, Alexandria, VA, USA, 1993 .
3. Calculation of load capacity of cylindrical worm gear pairs with shaft angle ∑= 90°, DIN 3996-98, Berlin, Germany,1998.
4. Computerized simulation of meshing and bearing contact for single enveloping worm gear drives;Litvin;J. Mech. Des.,1992
5. Prediction of the wear pattern in worm gears;Sharif;Wear,2005