@article{SJC_2014_8_1_a4,
     author = {Rack, Heinz-Joachim and Vajda, Robert},
     title = {On {Optimal} {Quadratic} {Lagrange} {Interpolation:} {Extremal} {Node} {Systems} with {Minimal} {Lebesgue} {Constant} via {Symbolic} {Computation}},
     journal = {Serdica Journal of Computing},
     pages = {71--96},
     publisher = {mathdoc},
     volume = {8},
     number = {1},
     year = {2014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SJC_2014_8_1_a4/}
}