TY  - RPRT
TI  - Comment on nondiffracting beams.
AU  - P Sprangle
AU  - B Hafizi
PY  - 1991
DO  - 10.1103/physrevlett.66.837
UR  - https://pubmed.ncbi.nlm.nih.gov/10043913/
ID  - 10043913
ER  -