TY  - JOUR
AU  - Híc, Pavol
TI  - On partially directed $P$-graphs
JO  - Mathematica slovaca
PY  - 1984
SP  - 25
EP  - 34
VL  - 34
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MASLO_1984__34_1_a1/
LA  - en
ID  - MASLO_1984__34_1_a1
ER  -