@inbook{1334,
  author = {K.J. Negus and M.M. Yovanovich},
  title = {Constriction Resistance of Circular Flux Tubes with Mixed Boundary Conditions by Linear Superposition of Neumann Solutions},
  year = {1984},
  pages = {1-6},
  publisher = {ASME Paper 84-HT-84},
}