TY  - JOUR
AU  - Andres, Stephan Dominique
TI  - Strong and weak Perfect Digraph Theorems for perfect, $\alpha$-perfect and strictly perfect digraphs
JO  - Discussiones Mathematicae. Graph Theory
PY  - 2023
SP  - 909
EP  - 930
VL  - 43
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DMGT_2023_43_4_a2/
LA  - en
ID  - DMGT_2023_43_4_a2
ER  -