TY  - RPRT
TI  - Integrability and localized excitations in nonlinear discrete systems.
AU  - S Flach
AU  - CR Willis
AU  - E Olbrich
PY  - 1994
DO  - 10.1103/physreve.49.836
UR  - https://pubmed.ncbi.nlm.nih.gov/9961276/
ID  - 9961276
ER  -