Lutz Volkmann. The smallest regular graphs which are not 1-extendable. Ars Comb., 104:179-184, 2012.
@article{Volkmann12-0, title = {The smallest regular graphs which are not 1-extendable}, author = {Lutz Volkmann}, year = {2012}, researchr = {https://researchr.org/publication/Volkmann12-0}, cites = {0}, citedby = {0}, journal = {Ars Comb.}, volume = {104}, pages = {179-184}, }