TY  - JOUR
AU  - Úlehla, Josef
TI  - On racial insufficiency: White messengers cannot simulate coloured ones
JO  - Commentationes Mathematicae Universitatis Carolinae
PY  - 1985
SP  - 323
EP  - 325
VL  - 26
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMUC_1985__26_2_a13/
LA  - en
ID  - CMUC_1985__26_2_a13
ER  -