@book{meinardus:1967:aft,
    author = {Meinardus, G\"unter},
     title = {Approximation of Functions: Theory and Numerical Methods},
    series = {Springer Tracts in Natural Philosophy},
    volume = {13},
 publisher = {Springer-Verlag},
   address = {New York},
      year = {1967},
     pages = {viii+198},
   mrclass = {41.00 (65.00)},
  mrnumber = {MR0217482 (36 \#571)},
      note = {Expanded translation from the German edition. Translated by Larry L. Schumaker},
     zblno = {0152.15202}}