@article{01144301,
title = {Ultrametric sets in Euclidean point spaces.},
journal = {ELA. The Electronic Journal of Linear Algebra [electronic only]},
volume = {4},
year = {1998},
pages = {23-30},
zbl = {0897.54020},
language = {en},
url = {http://dml.mathdoc.fr/item/01144301}
}
Fiedler, Miroslav. Ultrametric sets in Euclidean point spaces.. ELA. The Electronic Journal of Linear Algebra [electronic only], Tome 4 (1998) pp. 23-30. http://gdmltest.u-ga.fr/item/01144301/