@article{GDZPPN00206555X,
title = {Reduction theory using semistability.},
journal = {Commentarii mathematici Helvetici},
volume = {59},
year = {1984},
pages = {600-634},
zbl = {0564.20027},
url = {http://dml.mathdoc.fr/item/GDZPPN00206555X}
}
Grayson, Daniel R. Reduction theory using semistability.. Commentarii mathematici Helvetici, Tome 59 (1984) pp. 600-634. http://gdmltest.u-ga.fr/item/GDZPPN00206555X/