TY  - JOUR
AU  - Schwarz, Štefan
TI  - A counting theorem in the semigroup of circulant Boolean matrices
JO  - Czechoslovak Mathematical Journal
PY  - 1977
SP  - 504
EP  - 510
VL  - 27
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1977.101485/
DO  - 10.21136/CMJ.1977.101485
LA  - en
ID  - 10_21136_CMJ_1977_101485
ER  -