@article{01139215, title = {Stability of }, journal = {Documenta Mathematica}, volume = {2}, year = {1997}, pages = {375-386}, zbl = {0902.46034}, language = {en}, url = {http://dml.mathdoc.fr/item/01139215} }
Rørdam, Mikael. Stability of . Documenta Mathematica, Tome 2 (1997) pp. 375-386. http://gdmltest.u-ga.fr/item/01139215/