TY - JOUR AU - Harminc, Matúš TI - Solutions and kernels of a directed graph JO - Mathematica slovaca PY - 1982 SP - 263 EP - 267 VL - 32 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MASLO_1982__32_3_a5/ LA - en ID - MASLO_1982__32_3_a5 ER -