Homomorphisms and related contractions of graphs.
Girse, Robert D. ; Gillman, Richard A.
International Journal of Mathematics and Mathematical Sciences, Tome 11 (1988), p. 95-100 / Harvested from The Electronic Library of Mathematics
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Publié le : 1988-01-01
DOI : https://doi.org/10.1155/S0161171288000146
EUDML-ID : urn:eudml:doc:46531 
@article{04170933,
     title = {Homomorphisms and related contractions of graphs.},
     journal = {International Journal of Mathematics and Mathematical Sciences},
     volume = {11},
     year = {1988},
     pages = {95-100},
     doi = {10.1155/S0161171288000146},
     zbl = {0712.05028},
     language = {en},
     url = {http://dml.mathdoc.fr/item/04170933}
}

Girse, Robert D.; Gillman, Richard A. Homomorphisms and related contractions of graphs.. International Journal of Mathematics and Mathematical Sciences, Tome 11 (1988) pp. 95-100. doi : 10.1155/S0161171288000146. http://gdmltest.u-ga.fr/item/04170933/