%% -*-BibTeX-*-


@Article{AlHeKe87,
  author       = "J. D. Allen and R. V. Helgason and J. L. Kennington",
  title        = "The frequency assignment problem: {A} solution via nonlinear programming",
  journal      = "Naval Research Logistics",
  volume       = "34",
  pages        = "133--139",
  year         = "1987",
  language     = "English",
}