@article{02236321, title = {Nonextendibility of }, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {2005}, year = {2005}, pages = {2217-2226}, doi = {10.1155/IJMMS.2005.2217}, zbl = {1085.11016}, language = {en}, url = {http://dml.mathdoc.fr/item/02236321} }
Filipin, Alan. Nonextendibility of . International Journal of Mathematics and Mathematical Sciences, Tome 2005 (2005) pp. 2217-2226. doi : 10.1155/IJMMS.2005.2217. http://gdmltest.u-ga.fr/item/02236321/