@article{ELMA_1984__39_141341,
     author = {J.W. Schmidt and W. Hess},
     title = {Schwach verkoppelte {Ungleichungssysteme} und konvexe {Spline-Interpolation.}},
     journal = {Elemente der Mathematik},
     pages = {85--95},
     publisher = {mathdoc},
     volume = {39},
     year = {1984},
     zbl = {0518.65040},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1984__39_141341/}
}