Source-wise round-trip spanners

Chun Jiang Zhu, Kam-yiu Lam. Source-wise round-trip spanners. Inf. Process. Lett., 124:42-45, 2017. [doi]

@article{ZhuL17-0,
  title = {Source-wise round-trip spanners},
  author = {Chun Jiang Zhu and Kam-yiu Lam},
  year = {2017},
  doi = {10.1016/j.ipl.2017.04.009},
  url = {https://doi.org/10.1016/j.ipl.2017.04.009},
  researchr = {https://researchr.org/publication/ZhuL17-0},
  cites = {0},
  citedby = {0},
  journal = {Inf. Process. Lett.},
  volume = {124},
  pages = {42-45},
}