TY  - JOUR
AU  - Acharya, Mukti
AU  - Singh, Tarkeshwar
TI  - Graceful signed graphs
JO  - Czechoslovak Mathematical Journal
PY  - 2004
SP  - 291
EP  - 302
VL  - 54
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMJ_2004__54_2_a2/
LA  - en
ID  - CMJ_2004__54_2_a2
ER  -