Permutations and the 15-puzzle.
Nieto, José Heber
Boletín de la Asociación Matemática Venezolana, Tome 12 (2005), p. 259-264 / Harvested from The Electronic Library of Mathematics
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Publié le : 2005-01-01
EUDML-ID : urn:eudml:doc:230805 
@article{05163278,
     title = {Permutations and the 15-puzzle.},
     journal = {Bolet\'\i n de la Asociaci\'on Matem\'atica Venezolana},
     volume = {12},
     year = {2005},
     pages = {259-264},
     zbl = {1117.05300},
     language = {en},
     url = {http://dml.mathdoc.fr/item/05163278}
}

Nieto, José Heber. Permutations and the 15-puzzle.. Boletín de la Asociación Matemática Venezolana, Tome 12 (2005) pp. 259-264. http://gdmltest.u-ga.fr/item/05163278/