@article{equiangular-lines-and-covers-of-the-complete-graph,
  title = {{Equiangular Lines and Covers of the Complete Graph}},
  author = {G Coutinho and C Godsil and M Shirazi and H Zhan},
  year = {2016},
  journal = {Linear Algebra and Its Applications 2016},
  eprint = {1504.00085},
  archivePrefix = {arXiv},
  url = {https://www.sciencedirect.com/science/article/pii/S0024379515005443}
}