MILTERSEN, P. B. Two Notes on the Computational Complexity of One-Dimensional Sandpiles. BRICS Report Series, [S. l.], v. 6, n. 3, 1999. DOI: 10.7146/brics.v6i3.20060. Disponível em: https://tidsskrift.dk/brics/article/view/20060. Acesso em: 19 mar. 2024.