TY  - RPRT
TI  - Lissajous singularities.
AU  - David A Kessler
AU  - Isaac Freund
PY  - 2003
DO  - 10.1364/ol.28.000111
UR  - https://pubmed.ncbi.nlm.nih.gov/12656501/
ID  - 12656501
ER  -