Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
Agu Masahiro,Nonlinear Interaction between Positive-Energy and Negative-Energy Waves in a Dispersive Medium,Journal of the Physical Society of Japan,00319015,THE PHYSICAL SOCIETY OF JAPAN,1970,29,2,468-478,https://cir.nii.ac.jp/crid/1390001204194109824,https://doi.org/10.1143/jpsj.29.468