@article{10_37236_3159,
     author = {T. A. Le and J. W. Sander},
     title = {Integral circulant {Ramanujan} graphs of prime power order},
     journal = {The electronic journal of combinatorics},
     year = {2013},
     volume = {20},
     number = {3},
     doi = {10.37236/3159},
     zbl = {1295.05144},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/3159/}
}