1. Boundary Layer Lubrication: Monolayer or Multilayer;Allen;Wear,1969
2. The Properties of Solutions of Organic Acids in Liquid Hydrocarbons at Solid Surfaces, Research in Surface Forces;Fuks,1962
3. On the Lubricating and Other Properties of Thin Oily Films;Strutt;Phil. Mag. J. Science,1918
4. Boundary Lubrication — The Paraffin Series;Hardy,1921
5. Boundary Lubrication — The Temperature Coefficient;Hardy,1922