@article{02221796, title = {Extending arcs: an elementary proof.}, journal = {The Electronic Journal of Combinatorics [electronic only]}, volume = {12}, year = {2005}, zbl = {1082.51004}, language = {en}, url = {http://dml.mathdoc.fr/item/02221796} }
Alderson, T. Extending arcs: an elementary proof.. The Electronic Journal of Combinatorics [electronic only], Tome 12 (2005) . http://gdmltest.u-ga.fr/item/02221796/