How unproportional must a graph be?

Humberto Naves, Oleg Pikhurko, Alex Scott. How unproportional must a graph be?. Eur. J. Comb., 73:138-152, 2018. [doi]

@article{NavesPS18,
  title = {How unproportional must a graph be?},
  author = {Humberto Naves and Oleg Pikhurko and Alex Scott},
  year = {2018},
  doi = {10.1016/j.ejc.2018.05.007},
  url = {https://doi.org/10.1016/j.ejc.2018.05.007},
  researchr = {https://researchr.org/publication/NavesPS18},
  cites = {0},
  citedby = {0},
  journal = {Eur. J. Comb.},
  volume = {73},
  pages = {138-152},
}