To cite orca in publications use:
Hočevar T, Demšar J (2016). “Computation of Graphlet Orbits for Nodes and Edges in Sparse Graphs.” Journal of Statistical Software, 71(10), 1–24. doi:10.18637/jss.v071.i10.
Corresponding BibTeX entry:
@Article{,
title = {Computation of Graphlet Orbits for Nodes and Edges in
Sparse Graphs},
author = {Toma\v{z} Ho\v{c}evar and Janez Dem\v{s}ar},
journal = {Journal of Statistical Software},
year = {2016},
volume = {71},
number = {10},
pages = {1--24},
doi = {10.18637/jss.v071.i10},
}