TY  - JOUR
AU  - Zelinka, Bohdan
TI  - Double covers and logics of graphs. II.
JO  - Mathematica slovaca
PY  - 1983
SP  - 329
EP  - 334
VL  - 33
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MASLO_1983__33_4_a0/
LA  - en
ID  - MASLO_1983__33_4_a0
ER  -