@article{05555825, title = {The }, journal = {SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]}, volume = {4}, year = {2008}, doi = {10.3842/SIGMA.2008.087}, zbl = {1215.17018}, language = {en}, url = {http://dml.mathdoc.fr/item/05555825} }
Adamović, Dražen; Milas, Antun. The . SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only], Tome 4 (2008) . doi : 10.3842/SIGMA.2008.087. http://gdmltest.u-ga.fr/item/05555825/