TY  - JOUR
AU  - Danut Marcu
TI  - The middle graph of a hypergraph
JO  - Revista colombiana de matematicas
PY  - 1990
SP  - 97
EP  - 102
VL  - 24
IS  - 3-4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RCM_1990__24_3-4_181835/
ID  - RCM_1990__24_3-4_181835
ER  -