@incollection{sandpiles_eurocomb13,
  title = "Circulant matrices and sandpile groups of generalized de {B}ruijn graphs ",
  author = "Chan, Swee Hong and Hollmann, H. and Pasechnik, D. V.",
  year = "2013",
  booktitle = "Proceedings of EuroComb 2013",
  note = "arXiv.org e-print arXiv:1312.2114",
  series = "Publications of the Scuola Normale Superiore",
  volume = "16",
}