TY  - RPRT
TI  - Extended dynamical systems and stability theory.
AU  - J K Hale
AU  - E F Infante
PY  - 1967
DO  - 10.1073/pnas.58.2.405
UR  - https://pubmed.ncbi.nlm.nih.gov/16578655/
ID  - 16578655
ER  -