TY  - JOUR
AU  - B. T. Rumov
TI  - Constructing block designs of elements or residue rings with a composite modulus
JO  - Matematičeskie zametki
PY  - 1971
SP  - 649
EP  - 658
VL  - 10
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1971_10_6_a6/
LA  - ru
ID  - MZM_1971_10_6_a6
ER  -