@article{NUMA_1975__25_132394,
     author = {J. Baumeister},
     title = {\"Uber  die  {Extremaleigenschaft}  nichtlinearer  interpolierender {Splines.} - {On} the {Extremal} {Property} of {Nonlinear} {Interpolating} {Splines.}},
     journal = {Numerische Mathematik},
     pages = {433--446},
     publisher = {mathdoc},
     volume = {25},
     year = {1975},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1975__25_132394/}
}