Sergey Kitaev. On Graphs with Representation Number 3. Journal of Automata, Languages and Combinatorics, 18(2):97-112, 2013.
@article{Kitaev13, title = {On Graphs with Representation Number 3}, author = {Sergey Kitaev}, year = {2013}, researchr = {https://researchr.org/publication/Kitaev13}, cites = {0}, citedby = {0}, journal = {Journal of Automata, Languages and Combinatorics}, volume = {18}, number = {2}, pages = {97-112}, }