1. Lubrication of gear teeth;Martin;Engineering (London),1916
2. Contribution to theory of lubrication of gears and of stressing of lubricated flanks of gear teeth;Meldahl;Brown Boveri Rev.,1941
3. Hydrodynamic lubrication based on new principles;Ertel;Akad. Nauk SSSR Prikadnaya Math. Mekh.,1939
4. Fundamentals of the hydrodynamic theory of lubrication of heavily loaded cylindrical surfaces;Grubin,1949
5. Fundamental conclusions from the contact-hydrodynamic theory of lubrication;Petrusevich;Izv. Akad. Nauk SSSR, Otd. Tekh. Nauk.,1951