TY  - RPRT
TI  - Variational method for finding periodic orbits in a general flow.
AU  - Yueheng Lan
AU  - Predrag Cvitanović
PY  - 2004
DO  - 10.1103/physreve.69.016217
UR  - https://pubmed.ncbi.nlm.nih.gov/14995703/
ID  - 14995703
ER  -