TY  - RPRT
TI  - Arithmetical method to detect integrability in maps.
AU  - J A G Roberts
AU  - F Vivaldi
PY  - 2003
DO  - 10.1103/physrevlett.90.034102
UR  - https://pubmed.ncbi.nlm.nih.gov/12570490/
ID  - 12570490
ER  -