@article{GDZPPN00206636X, title = {Reduction theory using semistability, II.}, journal = {Commentarii mathematici Helvetici}, volume = {61}, year = {1986}, pages = {661-676}, zbl = {0616.20020}, url = {http://dml.mathdoc.fr/item/GDZPPN00206636X} }
Grayson, Daniel R. Reduction theory using semistability, II.. Commentarii mathematici Helvetici, Tome 61 (1986) pp. 661-676. http://gdmltest.u-ga.fr/item/GDZPPN00206636X/