@article{10_37236_3263,
     author = {Tanbir Ahmed and Hunter Snevily},
     title = {Sparse distance sets in the triangular lattice},
     journal = {The electronic journal of combinatorics},
     year = {2013},
     volume = {20},
     number = {4},
     doi = {10.37236/3263},
     zbl = {1295.52011},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/3263/}
}