@inbook{1303,
  author = {M.M. Yovanovich and J.R. Culham and T.F. Lemczyk},
  title = {Simplified Solutions to Circular Annular Fins with Contact Resistance and End Cooling},
  year = {1988},
  journal = {AIAA Journal of Thermophysics and Heat Transfer},
  volume = {2},
  pages = {152-157},
  publisher = {AIAA},
}