TY  - RPRT
TI  - Sandpile models with and without an underlying spatial structure.
AU  - K Christensen
AU  - Z Olami
PY  - 1993
DO  - 10.1103/physreve.48.3361
UR  - https://pubmed.ncbi.nlm.nih.gov/9960993/
ID  - 9960993
ER  -