TY  - JOUR
AU  - Rataj, J.
TI  - On set covariance and three-point test sets
JO  - Czechoslovak Mathematical Journal
PY  - 2004
SP  - 205
EP  - 214
VL  - 54
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMJ_2004__54_1_a17/
LA  - en
ID  - CMJ_2004__54_1_a17
ER  -