@article{01460281,
title = {On the boundary of an extremal body.},
journal = {Beitr\"age zur Algebra und Geometrie},
volume = {40},
year = {1999},
pages = {331-342},
zbl = {0960.52015},
language = {en},
url = {http://dml.mathdoc.fr/item/01460281}
}
Horváth, Ákos G. On the boundary of an extremal body.. Beiträge zur Algebra und Geometrie, Tome 40 (1999) pp. 331-342. http://gdmltest.u-ga.fr/item/01460281/