Relaxed graceful labellings of trees.
Van Bussel, Frank
The Electronic Journal of Combinatorics [electronic only], Tome DS10 (2002), / Harvested from The Electronic Library of Mathematics
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Publié le : 2002-01-01
EUDML-ID : urn:eudml:doc:121635 
@article{01699542,
     title = {Relaxed graceful labellings of trees.},
     journal = {The Electronic Journal of Combinatorics [electronic only]},
     volume = {DS10},
     year = {2002},
     zbl = {0981.05089},
     language = {en},
     url = {http://dml.mathdoc.fr/item/01699542}
}

Van Bussel, Frank. Relaxed graceful labellings of trees.. The Electronic Journal of Combinatorics [electronic only], Tome DS10 (2002) . http://gdmltest.u-ga.fr/item/01699542/