Lynn Margaret Batten. An extension of Wagner s theorem. Discrete Mathematics, 92(1-3):21-23, 1991. [doi]
@article{Batten91, title = {An extension of Wagner s theorem}, author = {Lynn Margaret Batten}, year = {1991}, doi = {10.1016/0012-365X(91)90263-2}, url = {http://dx.doi.org/10.1016/0012-365X(91)90263-2}, researchr = {https://researchr.org/publication/Batten91}, cites = {0}, citedby = {0}, journal = {Discrete Mathematics}, volume = {92}, number = {1-3}, pages = {21-23}, }