TY  - RPRT
TI  - Hexagons and squares in a passive nonlinear optical system.
AU  - JB Geddes
AU  - RA Indik
AU  - JV Moloney
AU  - WJ Firth
PY  - 1994
DO  - 10.1103/physreva.50.3471
UR  - https://pubmed.ncbi.nlm.nih.gov/9911298/
ID  - 9911298
ER  -