Zur Abzählung der reellen Wurzeln algebraischer Gleichungen I. J. Schoenberg — 1934 Mathematische Zeitschrift
Arithmetic problems concerning Cauchy's functional equation I. J. Schoenberg — 1964 Compositio Mathematica
A theorem on polygons in n dimensions with applications to variation-diminishing and cyclic variation-diminishing linear transformations I. J. Schoenberg; Anne Whitney — 1951 Compositio Mathematica