@article{10_37236_4279,
     author = {Robert R. Lewis},
     title = {The degree-diameter problem for circulant graphs of degree 8 and 9},
     journal = {The electronic journal of combinatorics},
     year = {2014},
     volume = {21},
     number = {4},
     doi = {10.37236/4279},
     zbl = {1305.05107},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/4279/}
}