Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Safonov Vladimir L. and Shi Qingfan and Mino Michinobu and Yamazaki Hitoshi,Parametric Pair of Waves as a Nonlinear Oscillator.,Journal of the Physical Society of Japan,00319015,THE PHYSICAL SOCIETY OF JAPAN,1997,66,7,1916-1919,https://cir.nii.ac.jp/crid/1390282679157393664,https://doi.org/10.1143/jpsj.66.1916