TY  - JOUR
AU  - Porubský, Štefan
TI  - Natural exactly covering systems of congruences
JO  - Czechoslovak Mathematical Journal
PY  - 1974
SP  - 598
EP  - 606
VL  - 24
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1974.101278/
DO  - 10.21136/CMJ.1974.101278
LA  - en
ID  - 10_21136_CMJ_1974_101278
ER  -