1. Elevator door operator with variable pitch lead screw;Leiner,1984
2. Grinding wheel profile for hob relief grinding;Simon;ASME Transactions, Journal of Engineering for Industry,1982
3. A general method for computing worm gear conjugate mesh property: Part 1—The generating surface;Zheng;ASME Transactions, Journal of Mechanisms, Transmissions, and Automation in Design,1989
4. A general method for computing worm gear conjugate mesh property: Part 2—The mathematic model of worm gear manufacturing and working processes;Zheng;ASME Transactions, Journal of Mechanisms, Transmissions, and Automation in Design,1989
5. CAD of worms and their machining tools;Bar;Computer & Graphics,1990