@article{SponagelKilthauSpies2007,
  author    = {Stefan Sponagel and G. Kilthau and K. H. Spies},
  title     = {Sealing mechanism of lip seals},
  journal   = {Eleventh 11th International Conference on Fluid Sealing : proceedings of the 11th Internat. Conference on Fluid Sealing, held at Cannes, France 8 - 10 April, 1987 / organised and sponsored by BHRA, the Fluid Engineering Centre. Ed. B. S. Nau},
  pages     = {748 -- 772},
  year      = {2007},
}