TY  - JOUR
AU  - T. McKee
TI  - Validity up to complementation in graph theory
JO  - Fundamenta Mathematicae
PY  - 1983
SP  - 93
EP  - 98
VL  - 116
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/fm-116-2-93-98/
DO  - 10.4064/fm-116-2-93-98
LA  - en
ID  - 10_4064_fm_116_2_93_98
ER  -