@article{05232686, title = {The }, journal = {Balkan Journal of Geometry and its Applications (BJGA)}, volume = {12}, year = {2007}, pages = {85-99}, zbl = {1134.53011}, language = {en}, url = {http://dml.mathdoc.fr/item/05232686} }
Masca, Ioana Monica; Sabau, Vasile Sorin; Shimada, Hideo. The . Balkan Journal of Geometry and its Applications (BJGA), Tome 12 (2007) pp. 85-99. http://gdmltest.u-ga.fr/item/05232686/