Book "Multilevel Methods in Lubrication", C.H. Venner (2000)

Venner, C.H., & Lubrecht, A.A. (2000). Multilevel methods in lubrication. Elsevier. (ISBN 0-444-50503-2). http://store.elsevier.com/Multi-Level-Methods-in-Lubrication/isbn-9780444505033/