TY  - RPRT
TI  - Time-energy Heisenberg-type relations for nonlinear classical fields.
AU  - L Vásquez
PY  - 1986
DO  - 10.1103/physrevd.33.2478
UR  - https://pubmed.ncbi.nlm.nih.gov/9956925/
ID  - 9956925
ER  -