The number of edges in a bipartite graph of given radius

Peter Dankelmann, Henda C. Swart, Paul van den Berg. The number of edges in a bipartite graph of given radius. Discrete Mathematics, 311(8-9):690-698, 2011. [doi]

@article{DankelmannSB11,
  title = {The number of edges in a bipartite graph of given radius},
  author = {Peter Dankelmann and Henda C. Swart and Paul van den Berg},
  year = {2011},
  doi = {10.1016/j.disc.2011.01.015},
  url = {http://dx.doi.org/10.1016/j.disc.2011.01.015},
  tags = {graph-rewriting, C++, rewriting},
  researchr = {https://researchr.org/publication/DankelmannSB11},
  cites = {0},
  citedby = {0},
  journal = {Discrete Mathematics},
  volume = {311},
  number = {8-9},
  pages = {690-698},
}