Arithmetic Distance Functions and Height Fuctions in Diophantine Geometry. Joseph H. Silverman (1987/1988) Mathematische Annalen
Arithmetic of formal groups and applications I: Universal norm subgroups. P. Schneider (1987) Inventiones mathematicae
Automorphisms and local rigidity of regular varieties Frédéric Bien, Michel Brion (1996) Compositio Mathematica