@article{DBLP:journals/dam/FlocchiniRS98,
author = {Paola Flocchini and
Alessandro Roncato and
Nicola Santoro},
title = {Symmetries and Sense of Direction in Labeled Graphs},
journal = {Discrete Applied Mathematics},
volume = {87},
number = {1-3},
year = {1998},
pages = {99-115},
ee = {http://dx.doi.org/10.1016/S0166-218X(98)00051-1},
bibsource = {DBLP, http://dblp.uni-trier.de}
}
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