@article{Koh:93b,
  journal = {Numerical Functional Analysis and Optimization},
  year = 1993,
  volume = 14,
  title = {New effective moduli of uniqueness and uniform a-priori estimates for
           constants of strong unicity by logical analysis of known proofs in
           best approximation theory},
  pages = {581--606},
  author = {Kohlenbach, Ulrich},
}