1. Differential type hydrostatic transmissions;Sadler,1951
2. Application of the P.I.V. gear on continental machine tools;Anon;Machinery,1954
3. Application of the P.I.V. gear on continental machine tools;Anon;Machinery,1954
4. Multiple-stage split-power transmissions;White;J. of Mechanisms,1970
5. The selection of hydrostatic transmissions with various gear combinations;Reinke,1970