TY  - JOUR
AU  - Jörn Steuding
TI  - Upper bounds for the density of universality
JO  - Acta Arithmetica
PY  - 2003
SP  - 195
EP  - 202
VL  - 107
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/aa107-2-6/
DO  - 10.4064/aa107-2-6
LA  - en
ID  - 10_4064_aa107_2_6
ER  -