Angle-constrained spanners with angle at least π/3

Davood Bakhshesh, Mohammad Farshi. Angle-constrained spanners with angle at least π/3. Inf. Process. Lett., 120:44-46, 2017. [doi]

@article{BakhsheshF17,
  title = {Angle-constrained spanners with angle at least π/3},
  author = {Davood Bakhshesh and Mohammad Farshi},
  year = {2017},
  doi = {10.1016/j.ipl.2017.01.002},
  url = {http://dx.doi.org/10.1016/j.ipl.2017.01.002},
  researchr = {https://researchr.org/publication/BakhsheshF17},
  cites = {0},
  citedby = {0},
  journal = {Inf. Process. Lett.},
  volume = {120},
  pages = {44-46},
}